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← ScienceWhich consequence results when excessive frictional losses appear in a Carnot engine?
A)Reduced maximum achievable thermal efficiency✓
B)Reversible heat transfer becomes amplified
C)Isothermal expansion proceeds quasi-statically
D)Adiabatic compression remains entirely isentropic
💡 Explanation
Excessive friction increases irreversibility, diminishing efficiency because it dissipates energy as heat, hindering ideal energy transfer. Therefore, the thermal efficiency decreases; rather than amplifying reversible actions as irreversible effects dominate during the Carnot cycle.
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