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2009
Chemistry 118a
Problem set #5
Due Friday, October 16
Chapter 12:
#2. 4, 6, 10, 14, 18, 22, 32, 38, 44, 46, 52, 64
Supplementary problem:
In class we discussed how we can determine the heat of a reaction or process by
introducing a state function called the enthalpy, H:
H = E + PV
[1]
This has the property that the enthalpy change between two states gives the heat involved
provided the process is carried out at constant pressure.
Here we explore this point by
considering the properties of ideal gases.
a.
Suppose we have 2.0 moles of an ideal gas at 300K in a volume of 2 liters, and
compress this gas at constant pressure to a volume of 1 liter.
Calculate the
temperature of the gas after compression, and use this to calculate the heat exchanged
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This document was uploaded on 10/25/2011 for the course CHEM 118 at Yale.
 Fall '08
 JOHNSON
 Chemistry, Reaction

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