In one cycle,a heat engine takes in 1073.2 J of heat from a high-temperature reservoir,releases 685.8 J of heat to a low
问题描述：
In one cycle,a heat engine takes in 1073.2 J of heat from a high-temperature reservoir,releases 685.8 J of heat to a low-temperature reservoir,and does 387.4 J of work.What is its efficiency?
答
p=387.4J/1073.2J=36.1%
仅供参考哈