engineering recuitment BHEL Engineer Trainee Mock Test 2025 Thermodynamics First Law of Thermodynamics
A piston-cylinder assembly has 3 kg of an ideal gas (gas constant = 0.3 kJ/kg - K) at 300 K and 150 kPa. It is now heated in two step processes. In first process, it is heated upto 1000 K at constant volume. Then in second process, it is heated to 1500 K at constant pressure. Find the total work in the processes.
1
300 kJ
2
400 kJ
3
450 kJ
4
350 kJ