A heat engine that pumps water out of an underground mine accepts 700 kJ of heat...

Question

Question

A heat engine that pumps water out of an underground mine accepts 700 kJ of heat and produces 250 kJ of work. a. How much hea

Answer 1

Answer #1

Q_in = 700 kJ, W = 250 kJ

a- Rejected heat

Q_out = 700 - 250 = 450 kJ

b-

COP = W/Q_in = 250/700 = 0.3571 or 35.71%

Answer 2

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