Using Libr H2o Property And Exergy Analysis For Single Stage Vapour Absorption Refrigeration System

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It was desired to compare a theoretical value of enthalpy of combustion to a literature value. To do this, the theoretical value was calculated using a literature value for the heat of sublimation of naphthalene, the heat of vaporization of water and average bond energies, given in Table 1 of the lab packet.1 Equations (1) and (5) were used to calculate the theoretical enthalpy of combustion of gaseous naphthalene, where n was the number of moles, m was the number of bonds, and ΔH was the average bond energy:

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This paper was prepared for SOC250, Module 1 Homework Assignment taught by Instructor Jesse Kleis.

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The human race has advanced a great deal over the course of recent history, particularly so since the 18th century. Countless of these developments in society can be attributed to the achievements of engineers - however, despite this, many do not realise their contribution and importance. One of the fundamental bases behind these engineering feats is the harnessing of energy sources, such as electrical and heat energy. This has allowed for many innovations, for example power stations, transportation, communications and computers, which have all become critical to society and the modern world in which we live.

This lab is performed in order to determine the total energy in a reaction between zinc and hydrochloric acid. The reaction is done twice, once to measure the heat of the reaction and again to determine the work done in the system. This is because Enthalpy equals heat plus work (∆H= ∆E+W). Heat and work can be broken down further into separate components so the equation used in lab is ∆H=mc∆T + PV. Many calculations are used in the lab to find out what cannot be measured directly (ex: volume). After all the calculations were complete it was shown to have a very small percent error.

Name: Kateryna Tyshchenko Class: BA Autumn 2011 Module Code: 6SZ012 Lecturer: Jaco von Wielligh Word Count: 3954 Due Date: 04.11.2011

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