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← ScienceWhich outcome manifests when a Carnot heat engine cycle is modified to remove an isothermal process?
A)Reduced maximum reachable thermal efficiency✓
B)Increased refrigerating cycle performance
C)Elimination of entropy production irreversibility
D)System pressure variations completely cease
💡 Explanation
Removing the isothermal process prevents maintaining constant temperatures; therefore, less heat converts to work, reducing maximum theoretical efficiency because efficiency requires reversible heat transfer, rather than irreversible temperature changes at constant volumes.
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