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Ideal Gases and Final Temperatures

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1. Given that (dU/dV)T = 0 for an ideal gas, prove that (dH/dV)T = 0 for an ideal gas.
2. Calculate the final temperature, the work done, and the change of internal energy when 0.200 mol NH3 is used in a reversible adiabatic expansion form 0.50 dm3 to 2.00 dm3, initially at 25oC. The molar heat capacity of NH3 is 27.0 JK-1mol-1

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Some thermodynamic quantities are calculated for a reversible adiabatic expansion.

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