5. [10 Pts] A 500 W refrigerator uses R-410A, which goes through the following cycle: System boundary Just before evaporator Saturated liquid Just before compressor Superheated at Just before condenser Saturated gas Just after condenser liquid at -50 Condenser Work Expansion valve or capillary tube Evaporator QL at -50 C -20 C & 100 kPa at -30 C C & 100 kPa Ignore gravity and heat loss during transportation. (a) What is the mass flow rate? [2 Pts] (b) What is QH? [2 Pts] (c) What is QL? [2 Pts] (d) What is the flow speed before and after the expansion valve? [1 Pt] (e) What is the coefficient of performance of cooling and heating? [3 Pts]