問題詳情

29. A heat engine operates between 200 K and 100 K. In each cycle it takes 100 J from the hotreservoir, loses 25 J to the cold reservoir and does 75 J of work. This heat engine violates:
(A) both the first and second laws of thermodynamics
(B) the first law but not the second law of thermodynamics
(C) the second law but not the first law of thermodynamics
(D) neither the first law no the second law of thermodynamics

參考答案

答案:C
難度:困難0.333333
統計:A(1),B(0),C(1),D(0),E(0)

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