接上题,每一循环中的热源和工质的熵变为:

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接上题,每一循环中的热源和工质的熵变为:

A.0.02018kJ/(kg?K),0kJ/(kg?K)

B.0.12018kJ/(kg?K),0kJ/(kg?K)

C.-0.02018kJ/(kg?K),0.02018kJ/(kg?K)

D.-0.12018kJ/(kg?K),0.12018kJ/(kg?K)

参考答案:

答案:0.02018kJ/(kg?K),0kJ/(kg?K)