A Carnot refrigerator using R-134a absorbs heat from a refrigerated space at 0oC and rejects heat to a kitchen at 27oC.The refrigerant enters the evaporator with a quality of zero and exits with a quality of one. The operating pressure of the evaporator is 225 kPa. If the mass flow rate in the unit is 0.5 kg/s determine the number of Watts that must be supplied to the compressor.