Refrigerant 134a is the working fluid for vapor-compression refrigeration cycle. the evaporator temperature is 8°c and the condenser pressure is 12 bar. saturated vapor enters the compressor and superheated vapor enters the condenser at 60°c and exits the condenser as saturated liquid. for a refrigeration capacity of 8 tons or 2.816 x104 j/s determine the following: (1) the refrigerant mass flow rate in kg/s; (2) the compressor isentropic efficiency (hint: interpolation is required); (3) the compressor power in kw; (4) the system coefficient of performance; and (5) sketch the ts diagram.