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Predicting Changes in a Thermodynamic System

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A) The pressure of a monoatomic ideal gas in a closed system is reversibly and isochorically (constant volume) increased. Determine whether each of the following quantities is less than, equal to, or greater than zero.
ΔT
ΔV
w
q
ΔP
ΔU
ΔH
ΔS
b) A real gas is found to have a molar volume that is 90% of the molar volume of an ideal gas at 298K and 3 atm pressure. What is the compression factor for this gas?

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Solution Summary

This solution details the changes that will occur in a constant volume system when heat is applied. Changes in the system include internal energy, entropy, temperature, etc. Secondly, the compression factor of a gas is calculated using known conditions.

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a) The pressure of a monoatomic ideal gas in a closed system is reversibly and
isochorically (constant volume) increased. Determine whether each of the following
quantities is less than, equal to, or greater than zero.
ΔT
ΔV
w
q
ΔP
ΔU
ΔH
ΔS
Part A:
The first variable, ΔT, is the change in temperature. According to the ideal gas law (PV=nRT), the only way to increase the pressure in a gas without changing volume is by increasing temperature:
ΔT increases
The second ...

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