13. 40 kg of saturated liquid water at 150C is expanded until the pressure is 120 kPa in a process where PVn = constant, with exponent n = 0.2600. [15] (a) Calculate the work (in kJ) for this process. [16] (b) Calculate the heat transfer (in kJ) for this process. Satcom of 250C 500 kPa.