Multiple choice

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

  1. 0.34

  2. 2.48

  3. 2.92

  4. 3.43
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D Correct answer
Explanation

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