engineering recuitment Vizag Steel MT Mechanical 2020 Test Series Thermodynamics First Law of Thermodynamics Application of First Law to Closed System
Air at 100 kPa, 2°C occupies a 10 liters piston-cylinder device that is arranged to maintain constant air pressure. This device is now heated until its volume is 20 liters. The work produced by the air is
1
20 kJ
2
10 kJ
3
2 kJ
4
1 kJ