1 st law of Thermal Dynamics (id: f999a402c)

本题目来源于试卷: 1 st law of Thermal Dynamics，类别为 美国物理杯赛(Physics Bowl)

[单选题]
94.35: A gas can be taken from state a to c by twxjzw vvf/-h +;o different rep,irqhxr- .ir7 5 ocq6versible processes, a→c or a→b→c. During the direct process a→c, 20.0 J of work are done by the system and 30.0 J of heat are added to the system. During the process a→b→c, 25.0 J of heat are added to the system. How mucp.x-7 ro5i,icqqr hr6 h work is done by the system during a→b→c?

A. 5.0 J
B. 10.0 J
C. 15.0 J
D. 20.0 J
E. 25.0 J


参考答案:  C


本题详细解析: 暂无

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