Physics Unit15: Laws of Thermodynamics (id: 52558cb58)

本题目来源于试卷: Physics Unit15: Laws of Thermodynamics，类别为 通用国际物理

[单选题]
A heat engine absorbs 64 kcal of heat each cycle and 0rp(o xwv 2n-pkjt .f0exhausts 42 kcal. 6iyb/p1wrle5r no,- sb o(i6nCalculate the efficiency lnb5p 1ryrno6eb ,- i/6i(s woof each cycle.

A. 34%
B. 66%
C. 50%
D. 150%


参考答案:  A


本题详细解析: 暂无

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