railway RRB JE (CBT I + CBT II) Mock Test 2024 Thermodynamics First Law of Thermodynamics Application of First Law to Closed System
One kg of air, initially at a temperature of 27°C, expands reversibly at a constant pressure until the volume is doubled. If the gas constant of air is 287 J/kg.K, the magnitude of work transfer is_______ kJ
1
94.20 kJ
2
104.80 kJ
3
86.10 kJ
4
134.60 kJ