CHEM 6C Lecture Notes - Lecture 8: Phase Transition, Benzene, Thermodynamics

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18 May 2017
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The standard state of a property x desginated by x knot is defined as such: Substances and elements : most stable form of that material at the t of interest and 1 bar of pressure. Allows the tabulation and reporting of data from various sources to be accomplished. This is a state function because it does not depend on the path. Which of the following will have a greater entropy? a) b) c) Add 75 j reversible heat at 150 degrees celsius. Add 75 j reversible heat at 10 degrees celsius. Answer: c: there is a bigger difference when you start at a colder temperature. Entropy at constant temperature week 4 ch 22 23 page 1. At the transition temp, the temp of the substance remains constant as heat is supplied. At the temperature of a phase transition the transfer of heat is reversible. If the transition takes place at constant pressure.

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