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 x ;8.jm1wkbjw6gd:c jw 9y5xbcycle an2z. k2bm8luic4n cukl. i )vq(kpw7,jd exhausts 42 kcal. Calculate the qi (7 .m.iw2k)kjcl vb2zn8l,kucpu4 efficiency of 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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