7.28 Air initially occupying 1 m3 at 1.5 bar, 20 °C undergoes an internally reversible compression during which pV1.27 = constant to a final state where the temperature is 120°C.

Determine

(a) the pressure at the final state, in bar.

(b) the work and heat transfer, each in kJ.

(c) the entropy change, in kJ/K.