本题目来源于试卷: Efficiency, coefficient of performance and Carnot Cycle,类别为 美国物理杯赛(Physics Bowl)
[单选题]
12.44: A monatomic ideal gas is the working substan 9qz0o1louq v8ce for a refrigerator that un 0z1uoq l9ov8 qew;)e 9ld;dvhk ptpb(3 5d4zadergoes the cyclic process (ABCDA) shown in the PV diag )5d 3;e(vwlbp;dak4dehpt9z ram. The processes are all isochoric or isobaric with pressures between $P_0$ and $2P_0$ and volumes between $V_0$ and 2$V_0$ . What is the coefficient of performance for this refrigerator?

A. 1/4
B. 1/3
C. 4/3
D. 11/2
E. 13/2
参考答案: D
本题详细解析:
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