2. A gas undergoes a cycle in a pistoncylinder assembly consisting of the following three processes:

Process 1→2: Constant pressure, p = 1.4 bar, V₁ = 0.028 m³, W12 = 10.5 kJ

Process 2→3: Compression with pV = constant, U3 = U₂

Process 3→1: Constant volume, U₁ - U3 = -26.4 kJ

There are no significant changes in kinetic or potential energy.

a. Sketch the cycle on a p-V diagram.

b. Calculate the net work for the cycle, in kJ.

c. Calculate the heat transfer for process 1-2, in kJ.