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
Free Thermodynamics Enthalpy Chemical reaction
Introduction Enthalpy change‚ ΔH‚ is defined as the heat output of a system as it goes through a reaction under constant pressure. It is an important aspect of thermochemistry‚ which is the study of energy changes during a chemical or physical reaction . When we calculate enthalpy change‚ we always assume that the pressure is constant. We are able to calculate enthalpy change numerous ways‚ notably by the increase in heat‚ Q‚ given by an exothermic reaction or the heat absorbed by an endothermic
Free Thermodynamics Enthalpy Specific heat capacity
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
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Experiment 9 Aim A. To investigate the existence of hydrogen bonds between ethanol molecules. B. To measure the strength of hydrogen bond formed between ethanol molecules C. To investigate the formation of hydrogen bonds between molecules of ethyl ethanoate and trichloromethane. D. To measure the strength of hydrogen bond formed between molecules of ethyl ethanoate and trichloromethane. Procedure A. 1. 10 cm3 of ethanol was added into an insulated 50 cm3 beaker by
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Determination of the Enthalpy for Decomposition of Hydrogen Peroxide Objective: To construct a coffee cup calorimeter‚ measure its calorimeter constant‚ and determine the enthalpy of decomposition and formation of hydrogen peroxide. Background: This experiment is a classic thermodynamics lab. In it‚ we attempt to measure the enthalpy (H) of a chemical reaction. The main obstacle is that this is a quantity that cannot be measured directly. It instead is observed as heat from one substance is transferred
Free Thermodynamics Energy Hydrogen peroxide
Sports such as football or baseball involve lots of physical activities. Sports and exercises help in strengthening and toning the muscles and bones in the body. In short‚ the importance of sports for kids is that it keeps them in an excellent shape. When children or adults plays team sports‚ be it cricket or hockey‚ they learn to work in groups. They learn that if the team wins‚ they win and if the team loses‚ they lose. This way they learn how to work in groups. Thus‚ the importance of
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I believe that I have a growth mindset and a little bit of a fixed mindset for many reasons. I sometimes embrace challenges‚ for example whenever I’m doing math and see a “challenging” problem‚ I like to try to solve it on my own without the help of anyone‚ but that’s not always the case with me. I like to procrastinate a lot‚ especially when I know the assignment I’m doing isn’t going to be due for a couple of more days. I
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J. Appl. Environ. Biol. Sci.‚ 1(11)492-499‚ 2011 © 2011‚ TextRoad Publication ISSN: 2090-4215 Journal of Applied Environmental and Biological Sciences www.textroad.com Research and Design of Green Tropical Architecture Agung Murti Nugroho Department of Architecture‚ Faculty of Engineering‚ University of Brawiajay‚ Malang‚ Indonesia ABSTRACT The common debate on traditional and nation architecture is always about projecting local identity on built form. The attempts are applauded especially
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Calculation on the molar enthalpy change of a neutralization reaction Principle H2SO4(aq)+2NaOH(aq)=Na2SO4(aq)+2H2O(l) The reaction is a exothermic reaction‚ when the heat released by it is absorbed by water‚ the temperature of the water increases. The heat produced by the reaction can be calculated if it is assumed that all the heat is absorbed by the water. Heat change of reaction=-heat change of water =-mH2O×cH2O×△TH2O As the water has gained the heat produced by the reaction‚ the heat change
Free Thermodynamics Temperature Sodium hydroxide
By Kate Dance “Torching Tiny Teddies” Energy Efficiency Experiment Aim: To test the energy efficiency of a tiny teddy in kilojoules by burning the tiny teddy beneath a test tube of water. The water temperature is then measured to see how efficient the transformation of energy is. It is important to see how efficient the transformation is as it will give an indication to whether burning tiny teddies would be an efficient source of energy. Hypothesis: It was hypothesised that the temperature would
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