本题目来源于试卷: 2 nd law of Thermal Dynamics，类别为 美国物理杯赛(Physics Bowl)
[单选题]
02.44: A thermally insulating container has a membrane separating the /y afba,14 sf-;4,aujemwcz ma)kd0qcon ho0u+ c5/mte3te w -czs1:fpdtainer into two equal parts. In one part is a vacuum. In the other psm e+/:t htcpcez3u15w0 f do-art is an ideal gas of temperature T and internal energy U. The membrane is punctured and the gas rushes into the region which was vacuum. After the system has returned to equilibrium, which of the following is NOT true for the gas?
A. The temperature of the gas is unchanged.
B. No work is done by the gas on the surroundings
C. There is no heat exchanged by the gas with the surroundings.
D. There is no entropy change of the system.
E. The internal energy of the gas is unchanged.
参考答案: D
本题详细解析:
暂无
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