Refrigerant, with a specific enthalpy (h) of 211 kJ.kg-1, enters an evaporator at a pressure of 2 bar. It emerges from the evaporator as superheated vapour with a specific enthalpy of 815 kJ.kg-1. The mass flow rate of refrigerant is 0.2 g.s-1.

Assuming steady-state, steady-flow (SSSF) operation, calculate the rate of heat transfer (in J.s-1) into the refrigerant as it flows through the evaporator.