本题目来源于试卷: Physics Unit14: Heat，类别为 通用国际物理
[单选题]
An ideal gas at STP is first compressed until its volumv(m q20tgx+x+rdsk nl1z a8+ te is half the i3*h7 3.iovd3hf,)rw ltamqjnnitial 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 e33, h*qwf iojv)m.dn3althr7 nergy 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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