Chapter 5 Notes The study of energy and its transformations is called thermodynamics. An aspect of thermodynamics that deals with the relationships between chemical reactions and energy changes involving heat is called thermochemistry. 5.1 The Nature of Energy Energy is defined as the capacity to do work or produce heat. Work is the energy used to cause an object with mass to move. Heat is the energy of an object that causes its temperature to increase. Kinetic and Potential Energy
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Name Lab Partner Name(s) Thermodynamics‚ Enthalpy of Reaction Lab March 27‚ 2014 I. Purpose The purpose of this lab is to learn how to determine the heat of reaction. II. Safety 1. Wear appropriate safety attire (goggles‚ aprons‚ hair tie‚ etc.). 2. Do not directly inhale or ingest chemicals. 3. Understand safety information regarding the chemicals being handled during the lab (hydrochloric acid‚ sodium hydroxide). 4. Be aware of how to operate all lab equipment. 5. Clean hands
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DATE PERFORMED: NOVEMBER 14‚ 2012 CALORIMETRY INSTITUTE OF CHEMISTRY‚ COLLEGE OF SCIENCE UNIVERSITY OF THE PHILIPPINES‚ DILIMAN QUEZON CITY‚ PHILIPPINES RECEIVED NOVEMBER 20‚ 2012 INTRODUCTION Heat is a form of energy that can be passed from an object with high temperature to an object with low temperature. The heat required to change the temperature of a substance by 1 K is called heat capacity. A calorimeter is a device commonly used to measure the amount of heat that
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1000 calories Heat Capacity and Specific Heat the heat capacity of an object depends on both its mass and its chemical composition C = q/m x T = heat/mass(g) x change in temperature(C) Calorimetry precise measurement of the heat flow into or out of a system for chemical and physical process in calorimetry‚ the heat released by the system is equal to the heat absorbed by its surrounding. Conversely‚ the heat absorbed by a system is equal to the heat released by its surroundings calorimeter
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work of the scientists J. Arthur Harris and Francis G. Benedict showed that approximate values could be derived using body surface area (computed from height and weight)‚ age‚ and sex‚ along with the oxygen and carbon dioxide measures taken from calorimetry. Studies also showed that by eliminating the sex differences that occur with the accumulation of adipose tissue by expressing metabolic rate per unit of "fat-free" or lean body weight‚ the values between sexes for basal metabolism are essentially
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Running head: Beer’s Law And Calorimetry Beer’s Law And Calorimetry Adriane Bellard Ocean County College Beer’s Law is also referred to as the Beer- Lambert law or the Bouguer- Beer Law. The principle is based on an electromagnetic radiation that is passed through a sample‚ wavelength is detected by the sample. As a result strength of transmitted light is gradually reduced. The measurement of the reduced strength of radiation is supported by the spectrophotometer. Based on Beer’s
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Experiment 1: Calorimetry C.L. Mercado institute of chemistry‚ college of science university of the philippines‚ diliman quezon city‚ philippines date performed: November 16‚ 2012 instructor’s name: Irina Diane V. CastaÑo _________________________________________________________________________________________________________________________ introduction Chemical reactions absorb or release heat. One way to measure this is by using a homemade calorimeter. The calorimeter used
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05/14/2013 7.1 Lab Report- Caloric Content of Food TITLE: LAB 7.1 CALORIC CONTENT OF FOOD PURPOSE: In this lab we will have the opportunity to measure the energy in a variety of foods‚ by heating/burning a portion of the food item and catching the heat released into a known mass of water in a calorimeter. We will also identify units of measuring heat such as calories and joules. We will use basic lab equipment provided in our labpaq and we will use several household items as well. We
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the elements—the 96 metals‚ nonmetals and gases that form everything in the material universe— is the blueprint of the atomic future... 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... Clean Coal In the past decade global warming‚ and the potential dangers that goes with it has been a topic‚ which needs to be fixed. Clean
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heat energy released when we eat snack foods such as popcorn or potato chips. This lab includes three burning tests of different foods with different energy contents. Calorimetry is the science associated with determining the changes in energy of a system by measuring the heat exchanged with the surroundings(Calorimeters and Calorimetry). It requires us to create a soda can calorimeter which is a soda can with water inside in order to absorb heat energy and determine the temperature changes of water
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