72. A superheat steam Rankine cycle has turbine inlet conditions of 17.5 MPa and 530°C

expands in a turbine to 0.007 MPa. The turbine and pump polytropic efficiencies are 0.85 and

0.75 respectively. Pressure losses between the pump and turbine inlet are 1.5 MPa. What

should be the pump work in kJ/kg?

A. 17.34 B. 27.32 C. 25.32 D. 47.33