R134a refrigeration system operates in an ideal vapor-compression refrigeration cycle. The temperature of the condenser and evaporator are 46 C and -2 C respectively. The cooling effect of the refrigerator is 15 kW. Calculate a) mass flow rate of the refrigerant b) work input to the compressor c) heat rejection in the condenser d) what is the maximum COP if this refrigerator operates in Carnot refrigeration cycle?

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