A 5 kW pump is raising water to an elevation of 25 m from the free surface

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A 5 kW pump is raising water to an elevation of 25 m from the free surface of a lake. The temperature of water increases by 0.1oC. Neglecting the KE, determine
(a) The mass flow rate,
(b) The minimum power (magnitude only) required and
(c) The exegetic (second-law) efficiency of the system. Assume the ambient temperature to be 20oC.
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