Two Carnot engines A and B|KTG& THERMODYNAMICS|JEE-Main 2021

JEE MAIN 2021

27-07-2021 S2

Question

Two Carnot engines A and B operate in series such that engine A absorbs heat at $T_1$ 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 $T_3$. When workdone in both the cases is equal to value of $T$ is :

Select the correct option:

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

$\frac{1}{3} T_1+\frac{2}{3} T_3$

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

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

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution