please help me to solve this questions with steps thermodyna

please help me to solve this questions with steps .(thermodynamics)

Problems 11-14 apply to a vapor compression refrigeration cycle that utilizes ammonia as the refrigerant The saturated evaporating temperature is -10 F and the saturated condensing temperature is 95 F. Saturated vapor exits the evaporator and saturated liquid exits the condenser. The mass flow rate of the refrigerant in the cycle is 300 lbm/hr. What is the enthalpy of the fluid entering the evaporator? 32.1 Btu/lbm 149.4 Btu/lbm What is the enthalpy of fluid exiting the evaporator? 32.1 Btu/lbm 149.4 Btu/lbm 608.5 Btu/lbm 632.6 Btu/lbm please show the steps to solve these answers?

Solution

The enthalpy of the fluid entering the evaporator h₄=352.1kj/kg

                                                                                  = 151.328Btu/lbm

The enthalpy of the fluid leaving the evaporator h₁= 1413.4kj/kg

                                                                               = 607.8btu/lbm