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← ScienceWhich risk increases when an actual heat engine cycle deviates significantly from a Carnot cycle?
A)Decreased overall energy density
B)Increased frictional entropy generation✓
C)Elimination of pressure induced torque
D)Minimized thermal resistance losses
💡 Explanation
Lower efficiency results because deviations introduce irreversibilities increasing entropy generation; specifically frictional loses. Therefore, energy conversion declines because more energy becomes waste heat, rather than achieving optimal theoretical efficiency conditions.
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