One kg mole of an ideal gas is compressed isothermally at 127°C from 1 atm to...

One kg mole of an ideal gas is compressed isothermally at 127°C from 1 atm to 10 atm in a piston-and-cylinder arrangement. Calculate the entropy change of the gas, the entropy change of the surroundings, and the total energy change resulting from the process, if: (a) the process is mechanically reversible and the surroundings consist of a heat reservoir at 127°C. (b) the process is mechanically reversible and the surroundings consist of a heat reservoir at 27°C. (c) the process is mechanically irreversible, requiring 20% more work than the mechanically reversible compression, and the surroundings consist of a heat reservoir at 27°C.

Expert Solution

samet mamat answered 2 years ago

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