Question

The temperature TLof the cold reservoirs and the temperatures THof the hot reservoirs for four Carnot heat engines are
engine 1: TL= 400 K and TH= 500 K
engine 2: TL= 500 K and TH= 600 K
engine 3: TL= 400 K and TH= 600 K
engine 4: TL= 600 K and TH= 800 K
Rank these engines according to their efficiencies, least to greatest
A) 3, 4, 1, 2
B) 1 and 2 tie, then 3 and 4 tie
C) 2, 1, 3, 4
D) 1, 2, 4, 3
E) 2, 1, 4, 3

Answer

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