A refrigerator using R-134a operates on a vapor-compression refrigeration cycle between 0.12 and 0.7MPa. The compressor has an isentropic efficiency of 85%. The mass flow rate of the refrigerant is 0.05kg/s. Show the cycle on a T-s diagram with respect to the saturation lines, and determine a. Heat removal rate from the refrigerated space b. Power input to the compressor c. Heat rejection rate to the environment d. Coefficient of Performance for the refrigerator (ans: 7.41kW,2.15kW,9.56kW,3.45 )