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← ScienceWhich consequence results when a closed-cycle heat engine exceeds its cooling capacity?
A)Decreased thermal efficiency is observed✓
B)Increased internal friction occurs rapidly
C)Selective catalyst oxidation manifests internally
D)Reduced mass flow rate transpires
💡 Explanation
Exceeding cooling capacity raises the cold reservoir's temperature; because the Carnival Efficiency depends on the temperature difference between hot and cold reservoirs, the efficiency decreases. Therefore, performance drops, rather than mechanical failure because temperature differences drive performance limits.
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