engineering recuitment Vizag Steel MT Mechanical 2020 Test Series Thermodynamics First Law of Thermodynamics Application of First Law to Closed System
A mixture of gases expands from 0.03 m3 to 0.06 m3 at a constant pressure of 1 MPa and absorbs 84 kJ of heat during the process. The change in internal energy of the mixture is
1
30 kJ
2
54 kJ
3
84 kJ
4
114 kJ