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← ScienceWhich outcome results when the Carnot engine's expansion is too rapid?
A)Reduced efficiency increase irreversibility✓
B)Superheating within compression stages
C)Isothermal conditions at lower rate
D)Increased work output from friction
💡 Explanation
Increased rate causes inefficiency because it deviates from quasi-static equilibrium during adiabatic expansion. Mechanism is therefore irreversible heat transfer, giving energy losses, because the system loses ideal conditions from kinetic energy, rather than staying close.
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