本题目来源于试卷: Physics Unit14: Heat，类别为 国际高中通用物理
[单选题]
An ideal gas at STP if rwq*yxeb(sc .u;+9amg3/ nk w1.rxws first compressed until its volume is half the initial volume, and then it is allowed to expand until its pressure is half the initial pressure. All of this is done while holding the temperature constant. If the initial internal energ rm1n./3wxgkw y of the gas is U, the final internal energy of the gas will be
A. U.
B. U/3.
C. U/2.
D. 2U.
参考答案: A
本题详细解析:
暂无
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