Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at −20°c with a mass flow rate of 1.2 kg/s. refrigerant exits at 7 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine (a) the volumetric flow rates at the inlet and exit, each in m3 /s, and (b) the power input to the compressor, in kw