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JEE MAIN 2022
26-06-2022 S1
Question
The efficiency of a Carnot's engine, working between steam point and ice point, will be : `
Select the correct option:
A
26.81%
B
37.81%
C
47.81%
D
57.81%
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
$\begin{aligned} & \eta=\left[1-\frac{\mathrm{I}_{\mathrm{L}}}{\mathrm{T}_{\mathrm{n}}}\right] \times 100 \% \\ & \mathrm{~T}_{\mathrm{L}}=0^{\circ} \mathrm{C}=273 \mathrm{~K}, \mathrm{~T}_{\mathrm{n}}=373 \mathrm{~K} \\ & \therefore \eta=26.809 \%\end{aligned}$
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