Calorimetry Lab: Determining the Unknown Metal Purpose: To determine the identity of an unknown metal Hypothesis: The unknown metal is Copper Materials: * Safety glasses * Styrofoam cup * Thread or string * Glass rod * Thermometer * 100mL graduated cylinder * Hot plate * Balance * Unknown metal * 300mL beaker Procedure: i. Mass of metal was recorded ii. Water was heated on a hot plate in beaker iii. Temperature was recorded when water reached
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Exercise Physiology Responses To Steady-State Exercise Once an athlete has been performing continuous exercise for a period of around 20 minutes‚ their body reaches a steady-state. Continuous exercise includes all forms of exercise that have no stopping periods such as jogging‚ swimming or cycling. Examples of non-continuous exercise would be weight lifting‚ interval training and boxing. Steady state is when the body is working at a steady state it means that lactic acid removal is occurring
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Calorimetry: Enthalpy of Neutralization Introduction: The purpose of this lab experiment was to determine the molar concentration of the unknown HCl by using a coffee cup calorimeter. A coffee cup calorimeter is made of Styrofoam cups with a thermometer that is placed from the top and into the calorimeter to measure the temperature as the reaction happens. The Styrofoam cup used for the calorimeter creates an isolated system as it acts as a heat insulator between the cup and the surrounding
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I. Temperature Measurement 1. A thermometric property is a physical property that changes in a known way with temperature‚ and can therefore be used to measure temperature. The substance used as a thermometer must have a property that varies proportionally / linearly with temperature. [ In other words: When objects are heated or cooled‚ their temperatures change‚ along with some of their properties‚ these properties are known as Thermometric Properties.] Two commonly used thermometric properties
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Applied Heat past Examination Questions 1. An Ammonia refrigerator is to produce 2 tonne of ice per day at -4°C from water at 20°C. if the temperature range in the compressor is between 25°C and -6°C‚ Calculate horse power required to derive the compressor. Latent Heat of ice = 80 kcal/kg‚ and specific heat of ice= 0.5 2. A compressor draws 42.5 m3 of air per minute in the cylinder‚ at a pressure of 1.05 kg/cm abs. It is compressed Polytropically pV1.3=C to a pressure 4.2
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NODE: MECHANICAL NAME OF THE TOPIC: MODERN TRENDS IN REFRIGERATION & AIR CONDITIONING Rohit Wani1 Veermata Jijabai Technological Institute‚ Mumbai-400 019 rohit.20047@gmail.com‚ Ph.No – 9172339408. Sumit Pawar2 Veermata Jijabai Technological Institute‚ Mumbai-400 019 sumit12131@rediffmail.com‚ Ph.No – 8055827981. ABSTRACT: A state-of-the-art review is presented of the different technologies that are available to deliver
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Chemistry Lab #1 THER 368: Heat of Neutralization Objective The purpose of this lab was to: * Determine the heat of neutralization for the reaction of sodium hydroxide (NaOH) and hydrochloric acid (HCI). Requirement The heat of neutralization (∆Hneutzn ) is the heat transferred when 1 mol of an acid reacts with 1 mol of a base. This heat is generally reported in either kilojoules per mole (kJ/mol) or kilocalories per mole (kcal mol). The reaction of HCI and NaOH solutions
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Engineering is the only thing that can give me satisfaction in exploring it. There is always a new thing that can be found‚ create or solved. That is why I myself have made my own perception towards engineering‚ which is‚ ‘found‚ create‚ solved’. So‚ because of my passion towards engineering‚ I have enter line of technical since I am in 16 years old and fortunately I have been offered in pure mechanical engineering course in UTM. I started to realize I am really interest in engineering
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The Enhanced Greenhouse Effect The greenhouse effect is the effect of heat in the atmosphere which is causing more problems in the earth. The gases in the atmosphere‚ warmth from the sun would rebound back into space. Lot of gas in the air causes a large amount heat to be engrossed into the atmosphere also the heat of the sun’s energy warmth the world’s atmosphere. This Enhanced Green House effect experiment is to demonstrate that earth’s heat may be increasing because of the atmosphere in earth
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Date: 25th November‚ 2011 Aim: To show that when Hot and Cold water are mixed‚ heat lost by hot water is equal to heat gained by cold water. Theory: This Lab is done to demonstrate “the Law of Conservation of Energy”‚ which implies: - “the heat lost by one (1) substance must be equal to the heat gained by another substance within the system”. Apparatus: Two (2) similar Calorimeters: a Thermometer: a Measuring Cylinder: a Bunsen burner: a Tripod: an Asbestos Gauze Cork Mat. Procedure:
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