Refrigerant r-134a flows through a refigeration system at a rate of 0.12 kg/s . At the entrance to the adiabatic compressor, the r-134a is at 140 kPa and -10 C and exits at 700 kPa and 50 C. Given that the system releases waste heat to the environment at a rate of 24.43 kW, find power required by the compressor, isothermal efficency, heat removed from the refigerated space, and the coefficient of performance.