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← ScienceWhich consequence results when the high-temperature reservoir cools during a Rankine cycle?
A)Cycle efficiency inherently is reduced✓
B)Turbine blade rotation speed rises
C)Working fluid pressure fluctuations decrease
D)Condenser heat rejection requirements drops
💡 Explanation
Reduced reservoir temperature diminishes heat input, therefore the cycle efficiency drops due to the *Carnot efficiency* limit; the work output is then reduced because the temperature difference driving the cycle declines, rather than increasing work or altering pressures significantly.
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