engineering recuitment BHEL Engineer Trainee Mock Test 2025 Thermodynamics First Law of Thermodynamics
A gas is compressed at constant pressure from 0.3 m3 and 0.1 MPa to 0.15 m3. There is a transfer of heat of 35 kJ from gas during the process. Find the change in internal energy during the process.
1
10 kJ
2
20 kJ
3
-20 kJ
4
50 kJ