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← ScienceWhich risk increases when exceeding the Carnot limit?
A)System rejects excess waste heat
B)Efficiency drops substantially during expansion
C)Perpetual motion becomes theoretically plausible
D)Irreversible entropy production becomes substantial✓
💡 Explanation
Exceeding the Carnot efficiency limit causes increased irreversible entropy production because no real-world engine may attain ideal Carnot efficiency; therefore, waste heat increases instead of being converted directly into useful work, rather than defying entropy.
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