Asealed, rigid vessel of 2 m contains a saturated mixture of liquid and vapor refrigerant r-134a at 10°c. if it is heated to 50°c, the liquid phase disappears. disappears. find (a) the final pressure (kpa) for the refrigerant, (b) the initial mass (kg), and (c) the volume (m^3) occupied by the liquid phase.

Acarnot refrigerator operates in a room in which the temperature is 21°c and of power when operating. if the food compartment of the refrigerator is consumes 3 kw to be maintained at 2°c, determine (a) the coefficient of performance of the cycle and (b) the rate of heat removal from the food compartment. refrigerator cycle that has a higher coefficient of performance than that of the discussed (e) is it possible to develop a carn ot refrigerator, operating between the same temperature limits? explain