Refrigerant 134a is the working fluid in an ideal vapor-compression refrigeration cycle that communicates thermally with a cold region at -8 degree C and a warm region at 30 degree C. Saturated vapor enters the compressor at -8 degree C and saturated liquid leaves the condenser at 30 degree C. The mass flow rate of the refrigerant is 0.08 kg/s. Determine (a) the compressor power, in kW (20 points) (b) the refrigeration capacity, in tons (20 points) (c) the coefficient of performance (10 points)