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Which risk increases when a Carnot engine cycles far from equilibrium?

A)Reduced energy conversion efficiency
B)Increased mechanical stress internally
C)Decreased operational temperature range
D)Elevated super-adiabatic temperature gradients

💡 Explanation

Increased heat transfer irreversibility causes reduced efficiency because entropy generation rises significantly; therefore the engine performs worse, rather than experiencing mechanical failures or facing different temperature restrictions, where quasistatic processes minimize losses via isothermal expansion/compression.

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