1.

The internal energy change when a system goes from state A to B is 40 kJ/mol. If the system goes from A to B by a reversiblepath and return to state A by an irreversible path what would be the net change in internal energy

Answer»

40 KJ
`gt 0` kJ
`lt 40` kJ
Zero

Solution :`AOVERSET(40)RARRB`
`Aoverset(-40)rarrB`
`DeltaH=40-40=0`.


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