試卷名稱:106年 - 學士後西醫物理及化學106物理#77053
年份:106年
科目:學士後西醫物理及化學
49. A Carnot engine operates between two temperatures TH and TC. It takes in 600 J of heat from high-temperature reservoir at TH = 327℃ in each cycle and gives up 200 J to the low-temperature (TC) reservoir. What is the thermal efficiency of the cycle?
(A) 67%
(B) 33%
(C) 75%
(D)50%
(E)25%