engineering recuitment BEL Probationary Engineers Mock Test 2025 Thermodynamics Second Law of Thermodynamics and Entropy Entropy and Irreversibility
As shown in figure below, an ideal gas is confined to a cylinder by a piston. The piston is pushed down slowly so that the gas temperature remains at 27°C. During the compression, 900 J of work is done on the gas. Find the entropy change of the gas.
1
3 J/K
2
-3 J/K
3
-6 J/K
4
6 J/K