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A pump operates adiabatically with liquid water entering at 25C and 100kPa with a mass flow rate of 20kgs1. The discharge pressure is 2000kPa, and

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A pump operates adiabatically with liquid water entering at 25C and 100kPa with a mass flow rate of 20kgs1. The discharge pressure is 2000kPa, and the pump efficiency is 0.50. Determine the power requirement of the pump, the temperature of the water discharged, and the entropy change. Assume steady state operation. Please use steam tables to determine the specific volume of water. Cp of liquid water is 4.18kJkg1K1. The volume expansivity, , is 257.2106K1

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