railway RRB JE (CBT I + CBT II) Mock Test 2024 Thermodynamics First Law of Thermodynamics Application of First Law to Closed System
1 m3 of air at a pressure of 10 kg/cm2 is allowed to expand freely to a volume of 10 m3. The work done will be
1
+ve
2
-ve
3
zero
4
105 kg-m