Thermodynamics and ThermochemistrymediumMCQ SINGLE

The efficiency of the reversible heat engine is and that of irreversible heat engine is . Which of tThermodynamics and Thermochemistry Chemistry Question

Question

The efficiency of the reversible heat engine is $\eta_r$ and that of irreversible heat engine is $\eta_i$. Which of the following relation is correct?

Answer: B

💡 Solution & Explanation

A reversible heat engine operating between two given temperatures always has a higher efficiency than any irreversible heat engine operating between the same two temperatures (Carnot's theorem). Thus, $\eta_r > \eta_i$.

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