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 fr )m3ao3c,,m,u 3ovsrch*bliwom no ron,np;7f cvu**y3 state a to c by two different reversible 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 7p r 3o nn,cuynv;*f*o system. How much 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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