The second law of thermodynamics, in the form of Carnots
Chapter 15, Problem 15.21(choose chapter or problem)
The second law of thermodynamics, in the form of Carnots principle, indicates that the most efficient heat engine operating between two temperatures is a reversible one. Does this mean that a reversible engine operating between the temperatures of 600 and 400 K must be more efficient than an irreversible engine operating between 700 and 300 K?
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