In a certain steam engine, the boiler temperature is 129 degree C and the cold reservoir...

Question

Question

science physics

Answer 1

Answer #1

Performance coefficient, n = 1 - ((273 + 24) / (273 + 129))

n = 0.26

W = 2 kcal

n Qin = W

Qin = 7.66 kCal

Qout = Qin - W = 5.66 kcal

Answer 2

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