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← ScienceWhich outcome reduces efficiency when steam rapidly cools?
A)Condensation increases irreversibility✓
B)Superheating raises turbine speed
C)Reheating decreases thermal expansion
D)Extraction reduces energy losses
💡 Explanation
Condensation increases irreversibility in steam turbines because it is a phase transition involving heat loss and a large entropy increase; therefore efficiency decreases because this irreversibility limits complete energy conversion, rather than other thermal processes that recover energy.
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