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Which characteristic increases when a Carnot engine cycle operates irreversibly?

A)Total entropy increases continuously.
B)Isothermal expansion happens effectively.
C)Cooling efficiency significantly improves.
D)Heat irreversibly becomes more ordered.

💡 Explanation

Irreversible processes generate entropy because heat transfer happens through non-equilibrium states, involving viscous behaviours; therefore, total entropy continuously accumulates, rather than having constant value like in pure reversible Carnot cycles under similar controlled conditions.

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