A mole of an ideal gas is initially at 10 bar and 298 K. It is allowed to expand
against a constant external pressure of 2 bar up to a final pressure of 2 bar. At
During this process, the gas temperature drops to 253.2 K. Calculate ΔU, ΔH, ΔS,
ΔSenv and ΔSuniv for this process. Assume that the temperature of the surroundings is 298 K throughout the process.
We give the molar heat capacity at constant volume of the gas C̅v = 3/2R
N.B.

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Before proceeding let us define the relevant variables P initial pressure 10 bar 105 Pa P final pres... View the full answer