Question

1.00 mol of a gas at 27°C is expanded isothermally from an initial pressure of 3.00 atm to
a final pressure of 1.00 atm in two ways: (a) reversibly, and (b) against a constant external
pressure of 1.00 atm. Determine the values of q, w, ΔU, ΔH, ΔS, ΔSsur, ΔStot, ΔA and ΔG for
each path.

Answer 1

Answer:

1.00 mol of a gas at 27°C is expanded isothermally from an initial pressure of 3.00 atm to

a final pressure of 1.00 atm in two ways: (a) reversibly, and (b) against a constant external

pressure of 1.00 atm. Determine the values of q, w, ΔU, ΔH, ΔS, ΔSsur, ΔStot, ΔA and ΔG for

each path.