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2 moles of ideal gas is expanded isother...

`2` moles of ideal gas is expanded isothermally & reversibly from `1` litre to `10` litre. Find the enthalpy changes in `KJ mol^(-1)`.

A

0

B

`11.7`

C

`-11.7`

D

25

Text Solution

Verified by Experts

The correct Answer is:
A
` because H=E+PV` and `Delta H=Delta E+PDelta V`
`:. Delta H=Delta E +nRDelta T`
For isotermal and reversible process
`Delta T=0`
`:. Delta H=Delta E+0` ,brgt `because Delta E=0`
`because Delta H` is also equal to zero.
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