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A refrigerator uses R-134a as the working fluid and operates on the ideal vapor-compression refrigeration cycle except for the compression process. The refrigerant enters the evaporator at 120 kPa with a quality of34% and leaves the compressor at 70°F.The compressor consumes 450 W of power. (a) Sketch the process on a T-s diagram. (b) Find the mass flow rate (kg/s) of the refrigerant. c) Determine the condenser pressure (kPa). (d) Calculate the COP of the refrigerator.

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