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Which outcome occurs when a reversible Carnot cycle’s temperature differential approaches zero?

A)Efficiency diminishes, approaching zero
B)Entropy remains nearly constant
C)Power output approaches thermodynamic limits
D)Irreversible losses become exponentially greater

💡 Explanation

The cycle's efficiency decreases toward zero as the temperature difference narrows because efficiency relies on *temperature gradient*. Therefore, the Carnot engine produces minimal work, rather than operating at thermodynamic limits under those conditions which increases losses.

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