engineering recuitment BHEL Engineer Trainee Mock Test 2025 Thermodynamics Thermodynamics System and Processes Thermodynamic Systems
A frictionless piston-cylinder device contains 5 kg of an ideal gas at 100 kPa and 250 K. Gas is now compressed slowly according to the relation pv1.4 = Constant, until it reaches a final temperature of 450 K. What will be the work input during this process? [Gas constant of an ideal gas = 0.3 kJ/kg-K]
1
750 kJ
2
250 kJ
3
500 kJ
4
1000 kJ