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← ScienceWhich phenomenon limits the maximum efficiency in irreversible thermodynamic cycles by generating entropy?
A)Carnot efficiency exceeding one
B)Adiabatic expansion reaching absolute zero
C)Hysteresis induced by rapid cycling✓
D)Isothermal compression avoiding heat loss
💡 Explanation
When cycles operate irreversibly, hysteresis introduces losses because the system's properties lag behind changes in conditions, generating entropy. Therefore hysteresis limits real-world cycle efficiency, rather than violating thermodynamic laws, reaching absolute zero, or achieving ideal isothermal processes, which are all theoretical limits.
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