The specific work (in kJ/kg) supplied to the pump is

Question

In a power plant, water (density = 1000 kg/m³) is pumped from 80 kPa to 3 MPa. The pump has an isentropic efficiency of 0.85. Assuming that the temperature of the water remains the same, the specific work (in kJ/kg) supplied to the pump is                                                                                                                                                            

      (a) 0.34                                                               (b) 2.48

      (c) 2.92                                                               (d) 3.43