Question: The three Carnot engines shown in the drawing operate with hot and cold reservoirs whose temperature differences are 100 K. Rank the efficiencies of the

The three Carnot engines shown in the drawing operate with hot and cold reservoirs whose temperature differences are 100 K. Rank the efficiencies of the engines, largest to smallest.
(a) All engines have the same efficiency.
(b) A, B, C
(c) B, A, C
(d) C, B, A
(e) C, A, B

900 K 500 K 200 K | ! locl 800 K 400 K 100 K

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