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]
05.42 A sample of a monadezg2+,uoo (b zf8 8iqtomic ideal gas starts withgik.+aeww ;tuo/k- 6h pressure, volume, temperature, and number of moles givenh-tk .kaw+ /;oei6guw as $P_0$, $V_0$,$T_0$, n, respectively. The gas has molar specific heats at constant pressure and constant volume of $c_p$, $c_v$.
Process 1: The gas is compressed to half of its volume at constant pressure.
Process 2: The gas is expanded isothermally such that the gas does work on the environment equal
to the amount of work done onto the gas by the environment during process 1.
What is the entropy change of the gas during Process 2?
A. $nc_pln\frac{1}{2}$
B. $nc_pln2$
C. $\frac{P_0V_0}{T_0}$
D. 0
E. none of these
参考答案: C
本题详细解析:
暂无
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