Two Carnot engines A and... | Thermodynamics JEE Main 2021

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JEE MAIN 2021

27-07-2021 - S2

Question

Two Carnot engines A and B operate in series such that engine A absorbs heat at $\mathrm{T}_1$ and rejects heat to a sink at temperature T. engine B absorbs half of the heat rejected by Engine A and rejects heat to the sink at $\mathrm{T}_3$. When workdone in both the cases is equal to value of T is :

Select the correct option:

A

$\frac{2}{3} \mathrm{~T}_1+\frac{3}{2} \mathrm{~T}_3$

B

$\frac{1}{3} \mathrm{~T}_1+\frac{2}{3} \mathrm{~T}_3$

C

$\frac{3}{2} \mathrm{~T}_1+\frac{1}{3} \mathrm{~T}_3$

D

$\frac{2}{3} \mathrm{~T}_1+\frac{1}{3} \mathrm{~T}_3$

✓ Correct! Well done.

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