Problem 3: Consider a cyclic process consisting of three processes. The mass of air (working fluid) is 0.4 kg. The pressure and temperature of state I are 1 bar and 30 C respectively. During the process (going from state I to II) the air is compressed isothermally to a pressure of 8. The air then is expanded at constant pressure to state III. The final process (going from III to lis a polytropic process (P1.6 = const). Assume that air is an ideal gas with Cv = 0.718 kJ/kg K and Cp = K 1.005 kJ/kg K. Calculate = i) The pressure, volume and temperature at state I, II, and III ii) iii) iv) v) The work done by the air during each process. The change in internal energy each process. The heat transfer during each process. The net work done by the air during the cyclic process 1-11-111-1