engineering recuitment BPSC AE Mock Test 2025 Thermodynamics Second Law of Thermodynamics and Entropy Efficiency of Reversible Heat Engine
A diatomic ideal gas is used in a car engine (reversible) as working substance. If during the adiabatic expansion part of cycle volume of gas increases from V to 32 V, the efficiency of engine is ______
1
0.5
2
0.75
3
0.99
4
0.25