The three Carnot engines shown in the drawing operate with hot and cold reservoirs whose temperature differences
Question:
(a) All engines have the same efficiency.
(b) A, B, C
(c) B, A, C
(d) C, B, A
(e) C, A, B
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900 K 500 K 200 K | 왜! locl 800 K 400 K 100 K
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