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← ScienceWhich limitation appears in a Carnot heat engine operating isothermally?
A)Efficiency reaches theoretical maximum.
B)Increased entropy during irreversible transfers.✓
C)Mechanical failures halts operation.
D)Temperature changes increase compressor load.
💡 Explanation
Carnot's thermodynamic efficiency is limited by the irreversibility of real-world processes; therefore, increased entropy occurs since the Carnot cycle ideally assumes reversible isothermal and adiabatic processes, rather than perfect reversibility, maintaining its high theorical energy efficiency.
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