Question: I need help on this problem please. I tried the same problem with different numbers and still can't get the right answer. I need the

I need help on this problem please. I tried the same problem with different numbers and still can't get the right answer. I need the answers for this SPECIFIC problem. thank you

An ideal vapor-compression refrigeration cycle with ammonia as the working fluid has an evaporator temperature of -20C and a condenser pressure of 10 bar. Saturated vapor enters the compressor and saturated liquid exits the condenser. The mass flow rate of the refrigerant is 3 kg/min. Determine: (a) the coefficient of performance. (b) the refrigerating capacity, in tons

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