engineering recuitment UPPSC AE Mock Test 2024 Thermodynamics First Law of Thermodynamics Statement of First Law of Thermodynamics
During a certain compression process, 1 kJ of mechanical work input is supplied to 2 kg of a gas enclosed in a cylinder piston assembly and 400 J of heat is rejected to the cooling water being circulated in the jacket encasing the cylinder. This brings about a change in the specific internal energy by:
1
-700 J kg-1
2
600 J kg-1
3
300 J kg-1
4
-300 J kg-1