Question:
A Carnot engine operates between 400 K and 300 K. Its efficiency is:
A Carnot engine operates between 400 K and 300 K. Its efficiency is:
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Carnot efficiency depends only on temperatures.
Updated On: Jan 5, 2026
- 25%
- 30%
- 75%
- 100%
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The Correct Option is A
Solution and Explanation
\[
\eta = 1-\frac{T_2}{T_1}=1-\frac{300}{400}=0.25
\]
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