Refrigeration and Freezing

A vapor compression refrigeration cycle operates with refrigerant mass flow rate $\dot{m} = 0.2\text{ kg/s}$. Enthalpy at evaporator inlet is $h_1 = 240\text{ kJ/kg}$ and at evaporator exit is $h_2 = 390\text{ kJ/kg}$ (specific refrigeration effect $q_e = 390 - 240 = 150\text{ kJ/kg}$). Refrigerating capacity $\dot{Q}_e = \dot{m} q_e = 0.2 \times 150$ in kW is: