railway RRB JE (CBT I + CBT II) Mock Test 2024 Thermodynamics Thermodynamics System and Processes

When the valve of an evacuated bottle is opened the atmospheric air rusher into it. If the atmospheric pressure is 100 kPa and 0.8 m3 of air enters into the bottle, then the work done by the air will be

1
800 kJ 
2
40 kJ 
3
80 kJ 
4
180 kJ 
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