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Which inefficiency arises when a Carnot engine cycles too fast?

A)Gas temperatures equalize prematurely
B)Excessive heat leakage occurs
C)Friction losses become significant
D)Expansion ratios become unstable

💡 Explanation

A faster Carnot cycle causes incomplete heat exchanges because thermal equilibrium isn't reached during isothermal processes. This reduces the temperature difference and therefore lowers efficiency, rather than increasing friction or causing instability under equilibrium conditions.

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