Consider a piston-cylinder assembly in which a gas undergoes a cycle consisting of the following three processes Process 1-2: constant pressure, P= 1.4 bar, aL1 = 0.058 m3, W12 = 7.5 Id Process 2-3: Compression with PV= constant, U3 = U2 Process 3-1: Constant volume, U1 -U3 = -12.6 Id Neglect changes in kinetic or potential energy. (a) sketch the cycle on a P-V diagram, (b) calculate the net work for the cycle (in 1(1), and (c) calculate the heat transfer for the process 1-2 (in kJ). (Hint: Watch “Thermo Cycle Example”)
