Detemine the heat transfer to the water and the work input

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Reference no: EM131233206

1. A closed tank, V = 10 L, containing 5 kg of water initially at 25?C, is heated to 150?C by a heat pump that is receiving heat from the surroundings at 25?C. Assume that this process is reversible. Find the heat transfer to the water and the work input to the heat pump.

2. A resistor in a heating element is a total of 0.5 kg with specific heat of 0.8 kJ/kgK. It is now receiving 500 W of electric power, so it heats from 20?C to 180?C. Neglect external heat loss and find the time the process took and the entropy generation.

Reference no: EM131233206

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