Engineering :: Thermodynamics

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Three Carnot engines A, B and C having source temperature of 750?K, 700?K and 650?K have sink temperatures respectively 400?k, 350?k and 300?k. Which engine is the least efficient?

[A].	Engine A	[B].	Engine B
[C].	Engine C	[D].	All being Carnot engine have identical efficiencies

Answer: Option A

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