# Heat Essays & Research Papers

## Best Heat Essays

• heat - 3555 Words
﻿HEAT GENERATED IN APPLIANCES Why do some appliances produce more heat than the others? Most appliances with high power rating are heating appliances.The heating appliances has a heating element like resistors. The resistorsconvert electrical energy into light and thermal energy . It depends on the resistance of material if how much heat can be produced from electricity. Those devices who produced heat, the Nichrome wire is an element who is responsible for heating . when we say...
3,555 Words | 13 Pages
• Heat - 1652 Words
1. In physics and chemistry, heat is energy transferred from one body to another by thermal interactions. The transfer of energy can occur in a variety of ways, among them conduction,radiation, and convection. The SI unit of heat is the joule. Heat can be measured by calorimeter, or determined indirectly by calculations based on other quantities, relying for instance on the first law of thermodynamics. In calorimeter, the concepts of latent heat and of sensible heat are used. Latent heat...
1,652 Words | 6 Pages
• Heat Energy - 440 Words
﻿Heat energy Temperature – measure of the average KE of the particles in a substance, measured in degrees Celsius or degrees Kelvin. Celsius 0⁰C (freezing point of water) to 100⁰C (boiling point of water) Kelvin 0 K (absolute zero, particles stop moving theoretically), equivalent to -273.15⁰C. Uses the same scale for increase, ie. a 1⁰C increase in temperature equates to a 1K increase in temperature. Heat – amount of energy transferred, measured in Joules (J) Kinetic Energy,...
440 Words | 2 Pages
• Heat and Temperature - 905 Words
Introduction to Heat and Temperature Gonzalo Leon Strayer University 2012/01/27 Introduction to Heat and Temperature Relation between the Study of Heat and Kinetic Theory Kinetic theory can be describes as a scientific theory of the movement of an object. Kinetic theory relates to capacity of a subject to do work on another object due to their motion. Kinetic theory of matter explains that the same is compose of tiny pieces of, atoms or molecules in continues motion. The theory states...
905 Words | 3 Pages
• ## All Heat Essays

• Heat Transfer - 636 Words
Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy and heat between physical systems. Heat transfer is classified into various mechanisms, such as thermal conduction, thermal convection, thermal radiation, and transfer of energy by phase changes. Engineers also consider the transfer of mass of differing chemical species, either cold or hot, to achieve heat transfer. While these mechanisms have distinct...
636 Words | 2 Pages
• heat exchanger - 1594 Words
﻿Summary The topic investigated in this report is heat transfer in a concentric tube heat exchanger. A heat exchanger is a device used to transfer heat from a hot fluid to a colder fluid. Heat exchangers are widely used in the petroleum industry for various reasons. Some of the most important reasons are theta heat exchangers increase the process efficiency, conserve energy, reduce maintenance and provide employee safety among many other reasons. The main objectives of the lab study were to...
1,594 Words | 8 Pages
• Specific Heat - 1445 Words
INTRODUCTION Whenever two objects with different initial temperatures are put in contact with each other, the warmer one will cool down, and the cooler one will warm up, until they reach the same temperature. We now know that this has to do with the motions of molecules: what we sense as temperature is related to the average kinetic energy of the molecules of each material: the faster they’re vibrating around, the hotter the object feels. We can sidestep this molecular picture by dealing...
1,445 Words | 6 Pages
• Specific Heat - 546 Words
Introduction Specific heat is defined as the measure of the ability of a substance to change temperature. Specific heat of a substance is the heat needed to change the temperature of 1 gram of a substance once degree Celsius. The more Joules (unit of heat) needed, the higher the specific heat will be. The goal is to determine specific heat of a soil sample as compared to water. This difference has many ramifications regarding our climate, with local and global. Hypothesis I predict that...
546 Words | 2 Pages
• Calorimetry: Specific Heat and Heat of Solution
Summary These experiments were conducted to find the specific heat of a metal as well as the heat of solution of a solid. Both experiments required the use of calorimetry to measure heat flow and temperature change. The specific heat of the metal was found by heating it in boiling water before transferring it to the calorimeter that was partially filled with water. After shaking the calorimeter, the temperature change was measured and recorded. This information was used to calculate the...
1,558 Words | 6 Pages
• HEAT EXCHANGER - 2056 Words
﻿ PERFORMANCE OF A HEAT EXCHANGER Student Name: Chai Shu Qian Student ID: 0317060 Group Members: 1. Aaron Yesudian A/L William Yesudian 2. Anis Raihana Binti Abdul Aziz 3. Choo Choong Onn 4. Lee Kim Weng School of Engineering Taylor’s University Malaysia 15 April 2014 Table of...
2,056 Words | 13 Pages
• Temperature and Heat - 549 Words
Assignment Chapter 6 Concept Explorations 6.29. Thermal Interactions Part 1: In an insulated container, you mix 200. g of water at 80ºC with 100. g of water at 20ºC. After mixing, the temperature of the water is 60ºC. a. How much did the temperature of the hot water change? How much did the temperature of the cold water change? Compare the magnitudes (positive values) of these changes. b. During the mixing, how did the heat transfer occur: from hot water to cold, or from cold water...
549 Words | 2 Pages
• Heat of Neutralization - 532 Words
Heat of Neutralization: Lab Report In part A of this lab I determined the heat capacity of a calorimeter made out of two Styrofoam cups nesting together with a cardboard top containing a hole in the middle. First I placed 50 mL of water in the calorimeter, waited five minutes for the water to reach equilibrium, and used the computer’s temperature instrument to record the final temperature of the system. Next I heated 50 mL of water in a 250 mL beaker until the water reached 43.1 C...
532 Words | 2 Pages
• heat and temperature - 568 Words
﻿***Heat and temperature are related to each other, but are different concepts. Heat is the total energy of molecular motion in a substance while temperature is a measure of the average energy of molecular motion in a substance. Heat energy depends on the speed of the particles, the number of particles (the size or mass), and the type of particles in an object. Temperature does not depend on the size or type of object. For example, the temperature of a small cup of water might be the same as...
568 Words | 2 Pages
• Heat Transfer - 418 Words
The University of Sydney Aerospace, Mechanical and Mechatronic Engineering MECH3260 Thermal Engineering Heat Transfer Quiz 3 2007 Time: 40 minutes Answer ONE question only. Question 1 Consider the cylindrical receiver in a solar thermal power plant shown below. The receiver is made of opaque material and has a diameter D = 8m and length L = 14m. At a particular time, the heliostats direct a concentrated solar flux of q”S = 80...
418 Words | 2 Pages
• Absorbing Heat - 905 Words
Introduction- Heat is energy that is warm. Heat energy comes from different energy forms or types like electrical. Heat is also natural, from the sun. Heat transforms by reflecting on something and giving it warmth. The temperatures on the coloured cans will vary because they absorb different amounts of heat. According to the particle theory when an object heats up the particles spread out and move more. Aim- The aim of this experiment is to test how colour affects the amount of heat being...
905 Words | 3 Pages
• Specific Heat - 1812 Words
AIT Physics 1 Honors Laboratory: Specific Heat and Conservation of Energy When energy in the form of heat Q is added to a material, the temperature of the material rises. Note that temperature, in units of degrees Celsius (°C) or Kelvin (K), is a measure of how hot or cold a substance is, while heat, in units of joules (J) or calories (cal), is a measure of its thermal energy. 1cal = 4.19J. A measure of the efficiency with which a substance can store this heat energy is known as specific heat...
1,812 Words | 7 Pages
• Heat and Iron - 919 Words
A clothing iron, also called a flatiron or simply an iron, is a small appliance: a handheld piece of equipment with a flat, roughly triangular surface that, when heated, is used to press clothes to remove creases. It is named for the metal of which the device is commonly made, and the use of it is generally called ironing. Ironing works by loosening the ties between the long chains of molecules that exist in polymer fiber materials. With the heat and the weight of the ironing plate, the fibers...
919 Words | 3 Pages
• Heat Pump - 313 Words
No. 1: Heat Pump Experiment 1. Objective The objective of the experiment is to measure the Coefficient of Performance (COP) of a Heat Pump. 2. The experimental setup The equipment provided is a heat pump with pressure and temperature sensors placed at various locations. 3. Procedure Study the diagram and equipment provided and identify the various components of the Heat Pump – that is, the compressor (1-2), the condenser (2-3), the expansion valve (3-4) and the evaporator...
313 Words | 2 Pages
• Heat and Temperature - 859 Words
Heat and Temperature Heat is often described by the average individual as being the change in temperature from hot to cold. “Often the concepts of heat and temperature are thought to be the same, but they are not.” Heat and Temperature, para. 2) Perhaps the reasoning behind the incorrect reasoning is that humans associate the two together because when heat is applied to an object the temperature rises. The kinetic theory of matter better explains the underlying cause as to what takes...
859 Words | 3 Pages
• Heat Transfer - 4676 Words
Heat transfer Heat transfer is the transition of thermal energy from a hotter object to a cooler object ("object" in this sense designating a complex collection of particles which is capable of storing energy in many different ways). When an object or fluid is at a different temperature than its surroundings or another object, transfer of thermal energy, also known as heat transfer, or heat exchange, occurs in such a way that the body and the surroundings reach thermal equilibrium, this means...
4,676 Words | 14 Pages
• Heat Transfer - 777 Words
HEAT TRANSFER Heat transfer, also known as heat flow, heat exchange, or simply heat, is the transfer of thermal energy from one region of matter or a physical system to another. When an object is at a different temperature from its surroundings, heat transfer occurs so that the body and the surroundings reach the same temperature at thermal equilibrium. Such spontaneous heat transfer always occurs from a region of high temperature to another region of lower temperature, as required by the...
777 Words | 3 Pages
• Heat Transfer - 708 Words
Mechanisms of Heat Transfer Prepared by: Ms. Ana Antoniette C. Illahi 1 Conduction • conduction (or heat conduction) is the transfer of thermal energy between regions of matter due to a temperature gradient. Heat spontaneously flows from a region of higher temperature to a region of lower temperature, and reduces temperature differences over time, approaching thermal equilibrium. Prepared by: Ms. Ana Antoniette C. Illahi 2 (Heat Current in Conduction) • • • • • • • • H -...
708 Words | 4 Pages
• Heat and Calorimetry - 1021 Words
ANALYSIS On the first part of the experiment which is the determination of specific heat of metals. The obtained value of experimental specific heat of metal of aluminum and copper are 0.2152 calg-℃ and 0.0958 cal g-℃ , respectively. It is a must to work faster in performing this experiment because working in an air-conditioned room greatly affects the result of the temperature. For the temperature values, the final temperature of mixture should not increase more than 1 ℃...
1,021 Words | 5 Pages
• Heat Conduction - 1705 Words
Experiment 16: Heat conduction Introduction In this laboratory you will study heat flow across a temperature gradient. By comparing the temperature difference across one material to the temperature difference across a second material of known thermal conductivity, when both are conducting heat at a steady rate, you will be able to calculate the thermal conductivity of the first material. You will then compare the experimental value of the calculated thermal conductivity to the known value for...
1,705 Words | 6 Pages
• Heat Detector - 582 Words
A heat detector is a fire alarm device designed to respond when the convected thermal energy of a fire increases the temperature of a heat sensitive element. The thermal mass and conductivity of the element regulate the rate flow of heat into the element. All heat detectors have this thermal lag. Heat detectors have two main classifications of operation, "rate-of-rise" and "fixed temperature." |Contents | |...
582 Words | 2 Pages
• heat of neutralization - 823 Words
Discussions: 1. Why theoretical value different from value obtained? It may heat loss to the surroundings. It may have parallax error during taking the reading. 2. Why is usually the cup used in this experiment made of polystyrene? To prevent heat loss to the surroundings because it is a heat insulator. 3. Why the heat of neutralization has a negative sign? The reaction gives out heat that results in the increase of temperature of the products formed. I. Discussion During this...
823 Words | 4 Pages
• heat of combustion - 308 Words
﻿Heat of Combustion Questions 1. When bonds are broken, energy is required. When bond are formed, energy is released. All combustion reactions are exothermic. Suggest a reason for this in terms of the bonds broken and bonds formed. The energy required to break the bonds is greater than the energy required to form. 2. Explain why the heat of combustion of alkanols increases as the length of the carbon chain increases. The heat of combustion of alkanol increases as the length of carbon...
308 Words | 2 Pages
• heat capacity - 906 Words
Abstract Different substances react in various ways when exposed to heat. The amount of energy necessary to heat a certain amount of water by one degree is different than that of another liquid or substance. The technical term used to determine this characteristic is called heat capacity or specific heat capacity. The purpose of this experiment is to find the heat capacity of water, orange juice, and olive oil. A couple of very specific equipment is needed in order to complete this...
906 Words | 3 Pages
• find the convection heat transfer coefficient in a heat exchanger
﻿Forced and free convection Laboratory Introduction Convection, along with conduction and radiation is one of the three ways in which heat is transferred. In convection, heat can be exchanged from one fluid to another. In this experiment, a heated plate is in contact with air inside a rectangular cross section duct. The air is heated by conduction from the heated plate. The density of the air decreases as it is heated and this makes the warm air rise. Colder air, which in turn is less dense,...
2,603 Words | 9 Pages
• Specific Heat and Atomic Weight
Conclusions The purpose of this experiment was to find the relationship between a substance’s specific heat and its atomic weight. In the lab, the substances with the higher atomic weights had less specific heat. From this, we can conclude that specific heat and atomic weight have an inverse relationship, meaning as one decreases the other increases. The reason for this is because if atoms are small, or light, they have the ability to pack tightly together, leaving almost no space between...
325 Words | 2 Pages
• Forced Convection Heat Transfer
Forced Convection Heat Transfer I. Introduction This laboratory deals with forced convection, forced convection can be considered as a staple of heat transfer. That is to say that forced convection can be found in almost any heat transfer problem, and thus understanding its importance and how it affects a given problem is one of the more important learning objectives/outcomes of heat transfer. When dealing with forced convection the most important section, after understanding how...
2,412 Words | 9 Pages
• Engineering Heat Report - 2791 Words
H8 HEAT AND SPECIFIC HEAT CAPACITY ENB130 SEM 1 PRAC 2 JOSHUA KEARNEY; n8351937, PARTNER: Mike Lagendyk 2011 Joshua Kearney Queensland university of Technology 5/16/2011 H8 HEAT AND SPECIFIC HEAT CAPACITY ENB130 SEM 1 PRAC 2 JOSHUA KEARNEY; n8351937, PARTNER: Mike Lagendyk 2011 Joshua Kearney Queensland university of Technology 5/16/2011 Aim To measure the Latent heat of fusion of ice. Introduction/ Background Within this experiment all units implemented were...
2,791 Words | 8 Pages
• Heat Transfer Through Jacket
﻿Heat Transfer Through Jacket Objective The objective of this example is to analyze heat transfer in a pilot plant using simulation models. The first step is to use pilot plant data to calculate heat transfer parameters. The second part involves using simulation models to examine the trade-off between jacket parameters and heating times. Process Description Assumptions: The stirred tank is assumed to be perfectly mixed. The contributions of agitator work, heat loss to...
482 Words | 3 Pages
• Heat Transfer Coefficient - 1164 Words
Practice Problems Set – 1 MEC301: Heat Transfer Q.1 The slab shown in the figure is embedded on five sides in insulation materials. The sixth side is exposed to an ambient temperature through a heat transfer coefficient. Heat is generated in the slab at the rate of 1.0 kW/m3. The thermal conductivity of the slab is 0.2 W/m-K. (a) Solve for the temperature distribution in the slab, noting any assumptions you must make. Be careful to clearly identify the boundary conditions. (b) Evaluate T at the...
1,164 Words | 3 Pages
• Specific Heat Of Solids - 525 Words
﻿Bello, Justin Carl E. Physics 31ENL: Mechanics Laboratory January 14, 2013 B.S. Chemistry I Tuesday 1:30- 4:30 Mr. John Waruel Liwag EXPERIMENT NO: 3 SPECIFIC HEAT OF SOLIDS I.OBJECTIVES To determine the Heat Capacity of calorimeter, experimentally. To determine the Specific Heat of ceratin solid...
525 Words | 3 Pages
• Effect of Heat Transfer - 6106 Words
Effect of heat transfer on the performance of a thermoelectric heat pump driven by a thermoelectric generator Lingen Chen*, Fankai Meng, and Fengrui Sun Postgraduate School, Naval University of Engineering, Wuhan 430033, P.R. China. Recibido el 13 de enero de 2009; aceptado el 9 de junio de 2009 A model of a thermoelectric heat pump driven by a thermoelectric generator with external heat transfer irreversibility is proposed. The performance of the combined thermoelectric heat pump device...
6,106 Words | 18 Pages
• heat of reaction lab - 2131 Words
﻿ Calculating the Energy of an Acid-Base Reaction Written by: Alex Sergiacomi Group members: Grace Gilbertson, Shannon Moskowitz Abstract: The purpose of this experiment was to properly calculate the heat of an acid-base reaction. To calculate the energy of this reaction a coffee-cup calorimeter was made. Two different calorimeters were made and each individually tested. Once the heat capacity of each calorimeter was measured then a reaction of...
2,131 Words | 9 Pages
• Guidelines on the Heat Absorption Lab
First Name, Last Name Date Period Heat Absorption Lab First Name, Last Name Date Period Heat Absorption Lab Heat Absorption Lab Problem: Does color affect heat absorption? Research: Some colors reflect light and heat energy. Other colors absorb light and heat energy. Hypothesis: If I place black, white, red, green, blue and yellow paper under a lamp, then __________ paper will absorb the most heat....
326 Words | 2 Pages
• Thermodynamics and Heat Transfer - 1883 Words
National Diploma in Mechanical Engineering Section A: COMPULSORY Answer ALL questions 1-12 1. A resistance temperature device has a resistance R0 = 100 Ω at 0o C. If the resistance RT = 197.7 Ω in an oil bath, what is the temperature of the oil in the bath, given that RT = R0(1+αT)? Take R0 = 100 Ω R0 = resistance at 0o C α = 3.9083 x 10-3 /o C (2 marks) NDE Thermodynamics and Heat Transfer Exam 2008 Name: _______________________________________ Read all the instructions before starting...
1,883 Words | 13 Pages
• Heat of Decomposition of Hydrogen Peroxide
Module name: Physical Chemistry (CP 4117) Experiment: Heat of decomposition of hydrogen peroxide Lecturer: Dr Cheow Name: Loganathan Admin number: 1246102 Contents No. | Contents | Page | 1 | Abstract – a precise summary about the whole experiment and report. | 3 | 2 | Introduction to the experiment - a brief outline and relevant theory for the experiment and calculation | 3-4 | 3 | Procedure for the...
1,999 Words | 7 Pages
• Latent Heat Fusion - 659 Words
Latent Heat of Fusion Activity # 02 DE BORJA, C. A., DE CHAVES, N., DE LOS SANTOS, G. P., DEL MUNDO J., DIN, J. A., DIONISIO, J. D. Civil Engineering Department, College of Engineering, Adamson University Abstract The purpose of this experiment is to determine the Latent Heat of Fusion of ice. In this experiment, the heat of fusion of ice will be determined by using the method of mixtures (Quantity of heat lost = Quantity of heat gained). Introduction When a substance...
659 Words | 3 Pages
• Heat Capacity Lab - 831 Words
Specific Heat Capacity Lab Sample Material Mass of Sample (kg) Initial Temperature of hot Water. (oC) Initial Temperature of cool water (oC) Final Temperature of sample/ water (oC) t of Water (oC) Specific heat Capacity of Sample (J/kg oC) Mass of Cold Water Brass 68.2± 0.5 ±0.0005 =0.0682 kg 97.5 ± 0.2 24.0 ± 0.2 28.2 ± 0.2 4.2 ± 0.4 3.99 x 10 -2 107g ± 1 0.107 kg ± 0.001 kg -Qsolid = Qwater -c • m • t = c • m • t -c = c • m • (Tf –Ti) m • (Tf – Ti) -c =...
831 Words | 4 Pages
• Specific Heat Capacity - 233 Words
Specific Heat Capacity Aim: To determine the specific heat capacity for an unknown metal. Apparatus/Material: Water, Hot plate, Thermometer, Wire, Cup, Tissue, Beaker, Glass rod. Procedure: (1) Mass of metal was recorded, (2) Metal was attached to wire and glass rod, (3) Metal was then suspended in beaker for fifteen minutes with boiling water, (4) Metal was removed after the fifteen minutes and placed in cup with water, the mass of the water and temperature of the water was...
233 Words | 2 Pages
• The Three Methods of Heat Transfer
3 Methods of Heat Transfer Now in Physics we learn that there are three methods of heat transfer, this being: Radiation, Conduction, and Convection. Let’s start with radiation; radiation is the transfer of energy as electromagnetic waves. So basically it does not need to directly touch anything or move any particles around, much like convection and conduction do. Radiation mostly occurs through empty space, so I think a good example of radiation would be when you feel warm in front of a...
268 Words | 1 Page
• Specific Heat Capacity - 338 Words
Cebu Institute of Technology University Physics 202 Taboada, Marie Floina June L. BSIE 2 December ,2012 (Name, Course, Year) (Date Submitted) Experiment no. 1 Group...
338 Words | 2 Pages
• Heat of Fusion of Ice - 427 Words
Ailine Veiga Question: what is the heat of fusion of ice? Hypothesis: To get the heat of fusion of ice we need to determine the Energy it takes to melt the ice and also the mass of the ice and determine the heat of fusion. To determine the mass of the ice melted (m) we start by determine the volume of the water generated when the ice melted. This is the difference between the final volume (v2) and the initial volume (v1). Using the density of water (1.0g/mL), this volume can be converted into...
427 Words | 2 Pages
• heat engine lab - 500 Words
Heat engine lab Intro: when an engine runs, it pumps pistons that move up and down and provide energy to the engine to it to go. These pistons move because of pressure and heat. This work done on the system is not only mechanical but its also thermodynamic. When a piston undergoes one full cycle its displacement is zero because it comes back to its resting place. This means that its net thermodynamic work to be done should also be zero, as well as its total internal energy. In order to...
500 Words | 2 Pages
• Convection: Surface Heat Transfer
FREESTUDY HEAT TRANSFER TUTORIAL 2 CONVECTION AND RADIATION This is the second tutorial in the series on basic heat transfer theory plus some elements of advanced theory. The tutorials are designed to bring the student to a level where he or she can solve problems ranging from basic level to dealing with practical heat exchangers. On completion of this tutorial the student should be able to do the following. • • Explain the use of the surface heat transfer coefficient. •...
2,523 Words | 14 Pages
• Specific Heat Capacity - 959 Words
Investigation 11 Specific heat capacity Aim: Investigate to determine the specific heat capacity of a metal cube provided Apparatus: -thermometer -stirrer -water -calorimeter -beam balance -metal cube -beaker Procedure: Using the normal equipment for Thermal Physics investigations, you are required to design and carry out an investigation to determine the specific heat capacity of a metal cube provide by teacher. Furthermore, you will need to compare your obtained value...
959 Words | 5 Pages
• Determination of Heat of Neutralization - 1000 Words
PRACTICAL 15: DETERMINATION OF HEAT OF NEUTRALIZATION Data collection: |Reaction |Initial Temperature/°C (±0.25) |Final Temperature of Mixture/°C (±0.25) | | |Acid |Base | | |HNO3 + NaOH |28.00 |28.25 |34.50 | |HNO3 + KOH |28.25 |28.25 |34.00...
1,000 Words | 8 Pages
• Heat of Fusion for Ice - 1071 Words
7/16/12 Heat of Fusion Heat of Fusion for Ice Introduction: This lab report is a step by step process in calculating the heat of fusion for ice and to compare the differences between salt added to room temperature water and salt added to icy water. To calculate heat of fusion, one must understand heat of fusion. Heat of fusion is the amount of heat required to convert a mass of a solid at its melting point into a liquid without an increase in temperature. As difficult as this may sound,...
1,071 Words | 3 Pages
• Geothermal Heat Pump - 2694 Words
Project – I DESIGN OF GEOTHERMAL HEAT PUMP A Project Report Submitted By Peter Galimutti (2474762) Neeraj Pastakia (2462895) Balasubrahmanyam Vanum (2474858) (MCE 622: Energy Conversion) MASTER OF SCIENCE IN MECHANICAL ENGINEERING Fall 07 Under the esteemed guidance of Dr.Earnest N.Poulous (Associate Professor)...
2,694 Words | 13 Pages
• Heat and Piston Cylinder Device
Individual Assignment. Each student is required to complete the task in a full handwriting on an A4 paper. Due Date of Submission on 30th November 2011, before 2.00 PM. Late submissions will not be entertained. 1. A 1.8-m rigid tank contains steam at 220°C. One third of the volume is in the liquid phase and the rest is in the vapor form. Determine (a) the pressure of the steam, (b) the quality of the saturated mixture, and (c) the density of the mixture. 3 2. A piston–cylinder device...
1,061 Words | 3 Pages
• Heat of Combustion Experiment - 761 Words
Alkanols Heat of Combustion Aim: To determine the molar heat of combustion of methanol, ethanol and 1-propanol Materials:  3 spirit burners, one containing methanol, one containing ethanol and one containing 1-propanol.  A thermometer  A copper calorimeter  100 ml measuring cylinder  Retort stand and clamps  Stopwatch  Matches  Electronic balance Safety assessment:  This experiment contains flammable materials remove loose clothing such as ties which could be set...
761 Words | 4 Pages
• Experimental Specific Heat - 430 Words
﻿Name: ______________________ 6.03: Calorimetry Data and Observations: Part I: Insert a complete data table, including appropriate significant figures and units, in the space below. Also include any observations that you made over the course of part I. (4 points) Metal Name Mass of Metal Volume of water Initial temp. in calorimeter Initial temp. in beaker Final temp. of mixture Part II: Insert a complete data table, including appropriate significant...
430 Words | 4 Pages
• Heat Stress and the Strain in Exercise
Journal of Science and Medicine in Sport (2008) 11, 6—19 REVIEW Heat stress and strain in exercise and sport John R. Brotherhood The University of Sydney, Exercise and Sport Science, Faculty of Health Sciences, Australia Received 3 May 2007 ; received in revised form 27 August 2007; accepted 28 August 2007 KEYWORDS Heat stress in sport; Exercise thermoregulation; Rational analysis of heat stress; WBGT; Risk assessment for exertional heat illness Summary Heat stress arising from the...
9,760 Words | 28 Pages
• Heat Pump Lab - 2365 Words
MECHANICAL ENGINEERING 449 SENIOR LAB Test of a Heat Pump Submitted Submitted by: Submitted to: Executive Summary: The purpose of this experiment was to determine the performance values of a Hylton Air and Water Heat Pump System. The system uses refrigerant 134a and water as the working fluids. The power input of the system was measured. The rate of heat output and the coefficient of performance are...
2,365 Words | 8 Pages
• Specific Heat Lab - 1793 Words
Ten Minutes of Specific Heat Remi Adams East Rowan High School AP Environmental Science Abstract Specific heat and climate were the primary focus of this lab. Specific heat is defined as “the measure of the ability of a substance to change temperature”. The purpose for carrying out this lab was to determine the specific heat/rates of both soil and water, and then comparing them. Students also were to relate specific heat to climate. Students were to determine which substance expressed...
1,793 Words | 6 Pages
• Latent Heat Lab Report
Activity 33 PS-2826 Latent Heat of Fusion Thermodynamics: phase change, latent heat of fusion, melting Qty 1 1 1 1 1L 0.5 L 1 Equipment and Materials PASPORT Xplorer GLX Fast-Response Temperature Probe (included with GLX) Basic Calorimetry Set (1 calorimeter cup) Balance Water, about 15 degrees warmer than room temperature Ice, crushed Towel Part Number PS-2002 PS-2135 TD-8557 SE-8723 Purpose The purpose of this activity is to determine the amount of thermal energy needed to change a...
1,387 Words | 8 Pages
• Lab6 latent heat - 1310 Words
﻿Hoang Ngo Lab 6 report Anita Dey Thursday 8am Abstract: We recently performed a liquid nitrogen experiment in finding the Latent heat of the substance. We isolated two parts of the experiment in order to find out how much evaporation of the liquid nitrogen was from the surroundings B and how much evaporation from the electricity G. 1. When a substance is undergoing a phase transition, more heat (energy) is being added to the Substance but its temperature (a way of measuring its energy) is...
1,310 Words | 6 Pages
• The Relationship Between Heat and Temperature
Heat in physics is defined as energy in transit. It is symbolized with the alphabet Q. (Strong, Martin C. The Great Alternative and Indie Discography of Heat) It is mostly connected with different movements of atoms, molecules and other particles. These particles either consist of particles that are either hot or cold. High temperature bodies, are often caused due to the high heat transfer, which is created by chemical reactions, nuclear reactions, electromagnetic dissipation, or mechanical...
1,000 Words | 3 Pages
• Research Summary Heat Stroke
﻿ Research Summary Hunter Jones MICT III Clinical Johnson County Community College Research Summary Heat stroke is defined by Knochel and Ouchama (2002, p. 1978) as “a core body temperature that rises above 40°C (105°F) and that is accompanied by hot, dry skin and central nervous system abnormalities such as delirium, convulsions, or coma.” Heat stroke can be the result of either exposure to a high environmental temperature or from an elevated core temperature due to...
1,450 Words | 5 Pages
• Chemistry Questions: Molecules and Heat
Dylan Wang—8Br Ms. Cooney Chemistry 8 February 25, 2015 Chemistry Questions 1. Explain what is happening to the water molecules in the flat areas of the line on your graph during the phase changes from solid to liquid and liquid to gas. The water molecules are currently gathering potential energy to change from the differing states of matter. Due to thermal equilibrium, the water would need a set amount of energy to break ...
348 Words | 1 Page
• Specific Heat Lab Report
Specific Heat Lab Report “Here are the facts we confront; No one is against conservation. No one is against alternative fuel sources.” – J. D. Hayworth Research Question: Does the number of hydrocarbons that a fuel is composed of affect how much it will ignite? If so, consider the following: What is the quantity and concentration of the combustion that is released and how can that be measured in other (more coherent) means? These are the fuels that were seasoned throughout the...
2,356 Words | 8 Pages
• Specific Heat Capacities of Metals
Title: Specific Heat Capacities of Metals Experiment Date: 3/28/2012 Report Date: 4/4/2012 Purpose: The purpose of the lab is to measure the specific heat capacities of aluminum, steel and brass. Theory: The amount of heat (ΔQ) required to change the temperature of an object is proportional to the mass (m) of the object and the temperature change (ΔT) of the object. ΔQ= cmΔT where c is called as the specific heat capacity of the material. In the calorie units system the unit of...
886 Words | 4 Pages
• Heat Transfer Lab Manual
[pic] AEROSPACE ENGINEERING LAB 1 (MEC 2700) LABORATORY MANUAL JULY 2007 Table of Contents Experiment 1: Heat Capacity of Gases Experiment 2: Thermal and Electrical Conductivity of Metals Experiment 3: Heat Pump Experiment 4: Heat Conduction Experiment 5: Free and Forced Convection Experiment 6: Thermal Radiation Experiment 1: Heat Capacity of Gases 1. BACKGROUND...
4,896 Words | 32 Pages
• techniques of waste heat recovery
﻿ Techniques of Waste Heat Recovery Waste heat recovery is being more used more and more often today as it is becoming more effective, due to increasing energy prices, technological developments and a decrease in equipment costs. Heat recovery can be classified into three main strategies: recycling energy back into the process, recovering the energy for other onsite use and using it to generate electricity in combined heat and power systems. Once the system has been made as efficient as...
3,431 Words | 10 Pages
• Heat: Temperature and Water - 988 Words
﻿Heat and Energy Transfer Lab Materials needed: Part 1: bowls (not included in the lab kit; use cooking pots or plastic containers- something large enough to fit your hand) ice (not included in the lab kit) thermometers Part 2 test tubes – use three similar glasses or cups water various household materials for insulation stove or microwave to heat up water Part 1: Heat transfer and human sensation 1. Pour warm water in the bowl on the left, cold water in the bowl on the...
988 Words | 4 Pages
• Effect of Heat on Vitamin C
Effect of Heat on Vitamin C Objective: - To determine whether the concentration of Vitamin C in a fruit juice changes upon heating at a constant temperature for different periods of time. - To investigate how the trend goes (whether the concentration of Vitamin C increases or decreases) if the amount of Vitamin C does change. Theory: - Hypothesis: The concentration of Vitamin C in the fruit juice changes and decreases upon heatingat a constant temperature for increasing periods of...
296 Words | 1 Page
Abstract The objectives of the Unsteady State Heat Transfer laboratory were to study the rates of heat transfer for different materials of varying sizes, to develop an understanding of the concepts of forced and free convection and to determine the heat transfer coefficients for several rods. These objectives were met by heating several rods and allowing them to cool through free convection in air, free convection in water and forced convection in water- while monitoring their change in...
1,783 Words | 5 Pages
• Heat Transfer Mechanisms - 541 Words
HEAT TRANSFER MECHANISMS Heat energy is being transferred from one location to another because of a temperature difference. The three mechanisms for heat transfer are: • Conduction. When you grip the hot handle of a pan on a stove, you feel conduction in action. Heat flows from the pan and along the length of the handle to its cooler free end. This is because one end of the rod is held at the high temperature, and the other end stays at the lower temperature. Although the rod itself...
541 Words | 2 Pages
• Determination of Specific Heat - 953 Words
Determination of specific heat Capacity of a solid by electrical method Introduction Thermal conductivity heat is transferred as a consequence of temperature difference between 2 bodies, heat energy passes form a hotter to the colder body. Specific heat capacity is the amount of heat energy required in joules to raise 1kg of a substance by 1 degree Celsius, different substances absorb heat energy at different rates not all substances require the same amount of heat energy to increase the...
953 Words | 5 Pages
• Heat and Temperature Difference - 837 Words
Name: ______________________________________ Date: ________________________ Student Exploration: Heat Transfer by Conduction Vocabulary: conduction, convection, insulate, radiation, thermal conductor, thermal energy, thermal insulator Prior Knowledge Questions (Do these BEFORE using the Gizmo.) Suppose two frying pans have been left on the stove with the burners on. One of the frying pans has a metal handle and the other has a wooden handle. 1. Which handle do you think you...
837 Words | 6 Pages
• Air Source Heat Pump
Air Source Heat Pump Description and Operation: A heat pump is classified according to the source from which it extracts heat, i.e. the low temperature heat source. One that collects and utilises thermal energy from the outside air to heat the home and provide domestic hot water is called an air source heat pump. In an air source heat pump, outdoor air is drawn into the heat exchanger, which contains coils filled with a pressurised refrigerant gas. The refrigerant gas referred to here...
1,164 Words | 4 Pages
• Measurement of the Heat of Neutralization of an Acid
Measurement of the Heat of Neutralization of an Acid CHM 152IN CRN: February 5, 2000 I. Purpose of Experiment The purpose of this lab is to measure the heat released in the reaction of an acid and a base. This will demonstrate an enthalpy reaction, showing energy being released. II. Chemicals and Equipment The following chemicals and equipment will be utilized for the experiment: |Chemicals |Equipment...
1,419 Words | 7 Pages
• Heat Engine Working Cycles
HEAT ENGINE WORKING CYCLES An engine is a device which transforms one form of energy into another form. However, while transforming energy from one form to another form, the efficiency of conversion plays an important role. Normally, most of the engines convert thermal energy to mechanical work and therefore they are called ‘heat engines’. Heat engine is a device which transforms the chemical energy of a fuel into thermal energy and utilizes this thermal energy to perform useful work....
486 Words | 2 Pages
• Paper on Heat Stress - 1286 Words
Heat Stress Exercises- Bhaskarla Krishna Harika Question 1: (5 marks) Herbicide spraying is taking place with a hand-held spray. The sprayers carry a container of weedkiller on their backs and the spraying covers a large area which they are covering on foot. The sprayers have just come back from annual leave, this being their first week back. To protect themselves against the herbicide, they are wearing cotton coveralls and gloves. On the day when spraying is to take place, the...
1,286 Words | 5 Pages
• Heat Transfer and Temperature - 1813 Words
Question 1: A 50 mm diameter, thin wall metal pipe covered by 25 mm thick layer of insulation (ki = 0.085 W/m.K) and carrying a superheated steam at atmospheric pressure is suspended from the ceiling of a large room. The steam temperature entering the pipe is 120 oC, and the air temperature is 20 oC. The overall heat transfer coefficient on the outer surface of the covered pipe is 10 W/m2.K. if the velocity of the steam is 10 m/s, at what point along the pipe will the steam begin condensing...
1,813 Words | 6 Pages
• Transient heat conduction - 1468 Words
﻿ HEAT AND MASS TRANSFER REPORT ON TRANSIENT HEAT CONDUCTION Submitted by CDT ARSHAD ALI CDT NIKHIL BHATIA Submitted to Associate Proffessor Pradeep Kumar Singh Indian Naval Academy Knowledge Begets immortality Certificate This is to certify that this project report entitiled “TRANSIENT HEAT CONDUCTION” by CDT ARSHAD ALI and CDT NIKHIL BHATIA during the academic year 2010-2014, is a bonafide record of work carried out under my...
1,468 Words | 6 Pages
• Heat of Solidification Lab-Writeup
Introduction In chemistry, substances require a certain amount of energy in the form of average kinetic energy (temperature) to freeze. To reach the temperature a substance requires to freeze, it must lose a certain amount of heat energy (a form of energy transferred from one object to another, because of a temperature difference). When a substance reaches its freezing point and begins to freeze, its temperature remains constant until it is completely frozen. However, in order to melt a...
1,128 Words | 3 Pages
• mechanical equipment of heat - 984 Words
THE MECHANICAL EQUIVALENT OF HEAT INTRODUCTION This is the classic experiment, first performed in 1847 by James Joule, which led to our modern view that mechanical work and heat are but different aspects of the same quantity: energy. The classic experiment related the two concepts and provided a connection between the Joule, defined in terms of mechanical variables (work, kinetic energy, potential energy. etc.) and the calorie, defined as the amount of heat that raises the temperature...
984 Words | 5 Pages
• Heat Transfer by Convection - 1071 Words
Heat Transfer by Convection Ch.E. 324 Based on the lecture notes of Prof. Alberto Laurito Learning Objectives At the end of the discussion you should be able to: • differentiate convection from conduction • identify whether a heat transfer by convection is forced or natural • solve individual film coefficients(h) and overall heat transfer coefficients(U) in a double pipe heat exchanger. Convection - heat is transferred due to a mixing process between cold and hot portions of a fluid....
1,071 Words | 12 Pages
• Specific Heat Summative - 1621 Words
﻿STAGE 1 PHYSICS ASSESSMENT TYPE 1: INVESTIGATIONS FOLIO PRACTICAL INVESTIGATION 2: SPECIFIC HEAT PURPOSE This assessment provides the student with the opportunity to demonstrate their ability to: formulate hypotheses and identify variables conduct an investigation collect, analyse and interpret data, and form conclusions evaluate results communicate your understanding of the physics concepts relating to the speed of sound in air DESCRIPTION OF ASSESSMENT Students will measure...
1,621 Words | 8 Pages
• waste heat recovery - 4372 Words
﻿1. INTRODUCTION An engine is a device which transforms one form of energy into another form. Most of the engines convert thermal engine to mechanical work and therefore they are called heat engine. Heat engine can be broadly classified into two types. i. Internal combustion engine ii. External combustion engine 1.1 CLASSIFICATION OF INTERNAL COMBUSTION ENGINE:- This type of engine is again classified into two types. i. Rotary ii. Reciprocating The reciprocating engine is a highly...
4,372 Words | 31 Pages
• Fundamentals of Physics: The Transfer of Heat
﻿Temperature Scales Ex: At what temperature will the reading on the Fahrenheit scale be numerically equal to that on the Celsius scale? The relationship between the two scales is given by TF = (9/5)TC + 32.0. We want the temperature when TF = TC, so we make that substitution. Rearranging gives Heat and Temperature Change: Specific Heat Capacity Q = mc T 4186 J = 1 kcal Ex: If 15 kcal of heat are added to 5.0 kg of silver, by how much will its temperature rise? Ex: An...
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• Heat Transfer Letcure 1
HEAT TRANSFER LECTURE 1 OUTLINE        Introduction Heat Conduction Forced Convection Natural Convection Application of Conduction & Convection Thermal Radiation Application of Radiation Introduction  What does the subject of heat transfer deal with? And why it is important.  What does the subject of mass transfer deal with?  Heat transfer is the science that deals with the study of rates of exchange of heat between hot and cold bodies....
1,009 Words | 9 Pages
• Effect of heat on the strength of hair
﻿ Effect of heat on the strength of hair IB Biology Phang Seow Ling Introduction BACKGROUND INFORMATION A fibrous component, keratin is the main structural component of hair that intertwines and strengthens hair, retaining hair moisture and thus hair strands are likely to break. Hair tends to have an outer layer of keratin that makes it smooth, but when exposed to heat this layer is damaged, making the hair appear dry and more brittle. AIM/RESEARCH QUESTION/PROBLEM This...
651 Words | 6 Pages
• Specific Heat of Solids - 391 Words
﻿Cebu Institute of Technology Phys 202 /K3 I. Title: Specific Heat of Solids II. Object: To determine the specific heat capacity of solids by methods of mixtures. III. Theory: When to or more substances at different temperatures are mixed, heat will flow from the substance of higher temperature to the substance of lower temperature. The heat flow will continue until equilibrium in temperature is reached. From the Law of Conservation of Energy, whatever amount of heat is lost by the hot...
391 Words | 2 Pages
• Lab for Specific Heat - 305 Words
Discussion Based on the results of the lab it can be seen that the metal in the lab can be identified as lead. The identity of the metal was determined by the heat energy calculations. The heat capacity that was found matched closely to that of the lead. There were several possible sources of error that could be found throughout the lab. Some of the main errors as seen in question 7 that could have affected the results of the lab were the amount of water transferred with the hot metal, the...
305 Words | 1 Page
• Heat Transfer Lab Report
• Understand and observe the concept of Heat Transfer, by measuring the temperature distribution for steady state conduction of energy through a specific efficient unit. • Understand the Fourier Law of heat conduction and the usage of its equation in determining the rate of heat flow via solid materials. II. Theory : The Fourier Rate Equation: When a plane section of ∆x and a constant area A maintains a temperature difference ∆T, then the heat transfer rate per unit...
927 Words | 4 Pages
• Specific Heat Lab - 731 Words
Specific Heat Lab Objective: Find the specific heat of the unknown metal given using calorimetry. Background Theory: In every reaction, energy is transferred between a system and its environment. A system encompasses the substances that are involved in a reaction, and everything else in the universe other than the system is called the environment. The standard SI unit of energy is Joules (J). Temperature is the level of excitement of the atoms in a substance. In most cases, energy is...
731 Words | 3 Pages
• The Process of Paradoxical Heat Sensation
The Process of Paradoxical Heat Sensation Vy Tran West Covina High School Abstract The following research study examined the effects of using a warm stimulus cold stimulus instead of a hot stimulus and a cold stimulus to perform a sensation known as paradoxical heat. In the process of paradoxical heat sensation, a hot and cold stimulus is synchronically stimulated giving off a feeling we believe is very hot but is actually two stimuli activating together....
1,023 Words | 3 Pages
• Heat of Fusion Lab - 1550 Words
Activity C03: Heat of Fusion for Ice (Temperature Sensor) |Concept |DataStudio |ScienceWorkshop (Mac) |ScienceWorkshop (Win) | |Phase change |C03 Heat of Fusion.DS |C03 Heat of Fusion |C03_ICET.SWS | |Equipment Needed |Qty |Equipment Needed |Qty |...
1,550 Words | 9 Pages
• Molar Heat of Combustion - 754 Words
Heats of Combustion of Alkanols Aim: To perform a first-hand investigation to determine the heats of combustion of selected alkanols. Hypothesis: It was predicted that methanol would have the highest molar heat of combustion, decreasing as the chains become longer. Equipment: • Three spirit burners containing methanol, ethanol and propan-1-ol respectively • Electronic scales • Water • 100ml measuring cylinder • Retort stand and boss-head clamp • Copper beaker • Thermometer...
754 Words | 3 Pages
• Specific Heat of Solids - 441 Words
﻿Specific Heat of Solids Abstract Heat is energy transferred from one body to another due to the difference in their temperatures. A metal sample was suspended in boiling water. It was then suspended in a calorimeter with cold water after. The cold water would gain the heat gained by the metal sample in the boiling water. Introduction Specific heat is the amount of heat required to raise the temperature of one gram of the substance by one degree Celsius. An object or material that has a...
441 Words | 2 Pages
• Heat transfer lab - 2699 Words
﻿DEPARTMENT OF CHEMICAL ENGINEERING NATIONAL INSTITUTE OF TECHNOLOGY KARNATAKA SURATHKAL - 575025 HEAT TRANSFER LAB MANUAL (July- November, 2013) List of Experiments S.No Date Experiment Remarks Observation Calculation 1. Thermal Conductivity Of Insulating Powder 2. Thermal Conductivity Of Liquid (Guarded Plate Method) 3. Transient Conduction With Constant Heat Flux 4. Stefan Boltzmann Apparatus 5. Natural And...
2,699 Words | 18 Pages
• Heat of formation of magnesium oxide
Heat of Formation of Magnesium Oxide Objetive: To determine the heat formation of MgO (Magnesium Oxide) using Hess’s Law, which states the heat within a chemical reaction is independent of the pathway between the initial and final states. Introduction: Chemical reactions require heat energy to complete, called an endothermic reaction, or produce heat energy, and thus called an exothermic reaction. The heat energy produced by such reactions can be measured using a calorimeter, a...
983 Words | 4 Pages
• Energy and Heat Flow - 2106 Words
Name ____________________________________________________________ Period ______ CP Chemistry Chapter 11 Syllabus: Thermochemistry – Heat and Chemical Change Complete the following assignments and staple them to the back of this packet in order. Points Points Assignment Comments Earned Possible 15 Practice Problems Worksheet 10 Chapter Lecture Notes 6 2 14 6 2 8 6 4 8 6 11.1 Guided Reading (p. 293-299) Sample Problem 11-1 11.1 Problems 6, 8, 10, 37, 41, 44, 45 11.2 Guided Reading (p....
2,106 Words | 10 Pages
• Energy and Molar Specific Heat
中原大學 99 學年度 春季轉學生 入學考試 12 月 18 日 14:00~15:30 理工群組二年級 科目： 普通物理 □可使用計算機，惟僅限不具可程式及多重記憶者 誠實是我們珍視的美德， 我們喜愛「拒絕作弊，堅守正直」的你！ （共 3 頁第 1 頁） □不可使用計算機 本試卷包括兩部分，第一部分填空題不需列出過程，第二部分計算題需詳列計 算過程。 一、填空題(計 15 小題，每小題 4 分，共計 60 %) 請按空格號碼次序，以所給的單位將答案寫在答案卷上 1. A meter stick(米尺) balances horizontally on a knife-edge(刀刃) at the 50.0 cm mark. With two 5.00 g coins stacked(堆) over the 12.0 cm mark, the stick is found to balance at the 45.5 cm mark. 1 What is the mass of the meter stick ? ○ g 2. A mass M is split...
977 Words | 3 Pages
• Heat and Mass Transfer - 9919 Words
FUNDAMENTAL CONCEPTS Heat transfer is energy in transit, which occurs as a result of temperature gradient or difference. This temperature difference is thought of as a driving force that causes heat to flow. The concepts of heat transfer and temperature, the key words in the discipline of heat transfer, are 2 of the most basic concepts of thermodynamics. dffffffffff rifffff orfff ffffffffff fv ing ff ce Rate of transport process= fffffffffff or rate = coefficient B driving force...
9,919 Words | 46 Pages