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← ScienceWhich efficiency cost results when friction increases inside a Carnot engine?
A)Entropy generation increases irreversibly✓
B)Isothermal expansion remains efficient
C)Adiabatic compression operates ideally
D)Heat transfer maintains equilibrium
💡 Explanation
Increasing friction in the engine causes more energy to be dissipated as heat which then results in increased entropy, because friction introduces irreversibilities that remove energy from the system. Therefore entropy generation increases, rather than the transfers maintaining equilibrium, while isothermal and adiabatic processes suffer.
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