A gas undergoes a cycle in a pistoncylinder assembly consisting of the following three processes: Process 12: Constant pressure, p = 1.4 bar, V1 = 0.028 m3, W12 = 5 kJ Process 23: Compression with pV = constant, U3 = U2 Process 31: Constant volume, U1 - U3 = -25 kJ There are no significant changes in kinetic or potential energy. (a) Calculate the net work for the cycle, in kJ. (b) Calculate the heat transfer for process 12, in kJ.