An ideal heat engine operates on a Carnot cycle between a high-temperature reservoir at 500 K and a low-temperature reservoir at 300 K. If the engine absorbs 2.500 J of heat per cycle from the hot reservoir, how much net work does it perform per cycle?
Answer and explanation
Correct answer: C. 1.000 J
- Step 1: Carnot efficiency (40%). Step 2. Net work J. Answer: Net work output is 1.000 J. Why not the others: Work performed equals efficiency times heat absorbed: J.
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