engineering recuitment NCL Assistant Foreman (Trainee) Mock Test 2024 Thermodynamics Second Law of Thermodynamics and Entropy Carnot's Theorem and its Corollary
A Carnot engine operating between temperatures T1 and T2 has efficiency 1/8. When T2 is lowered by 85 K, its efficiency increases to 1/4. Then T1 and T2 are, respectively:
1
680 K and 595 K
2
340 K and 297.5 K
3
640 K and 560 K
4
540 K and 472.5 K