In one cycle, a certain heat engine takes in 1000 J1000 J of heat from its high‑temperature reservoir and exhausts 700 J700 J of heat to its low‑temperature reservoir.
What is the efficiency of the heat engine under these conditions? 70%,30%,43%,143%,300%.
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In one cycle, a certain heat engine takes in 1000 J1000 J of
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