For a cyclic process, a fixed ratio between heat and work___________________?
Correct answer: B. Always exists
- A. May exist
- B. Always exists
- C. Never exists
- D. Is difficult to predict
Explanation
For a cycle, the system returns to its initial state, so its change in internal energy is zero and the net heat equals the net work. Therefore their ratio is fixed, with Qnet/Wnet = 1 when the signs use the same convention.
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