Refrigerant 134a undergoes a process for which the pressure-volume relation is PV^n = Constant. The initial and final states of the refrigerant are fixed by P1= 200 kPa, T1= -10 degrees C and P2= 1000 kPa, T2 = 50 degrees C, respectively. (a) Draw a T-v diagram, label the saturated temperature, the specific volumes, and the temperatures of both the initial and final states. (b) Determine the work done during this expansion process, in KJ/kg. (c) Calculate the amount of heat that transferred into R-134a, in kJ/kg.