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For a reaction, A(g) to A(l), Delta H = ...

For a reaction, `A(g) to A(l), Delta H = -3RT`
The correct statement for the reaction is :

A

`Delta H=DeltaU!=0`

B

`DeltaH=DeltaU=0`

C

`|DeltaH|lt|DeltaU|`

D

`|DeltaH|gt|DeltaU|`

Text Solution

Verified by Experts

The correct Answer is:
D
`A(g)toA(1)`
`DeltaH=DeltaU+Deltan_(g)RT`, Given `DeltaH=-3RT`
Here
`Deltan_(g)=n_(p)-n_(r)=0-1=-1`
`implies-3RT=DeltaU-RT,implies-2RT=DeltaU`
`|DeltaH|gt|DeltaU|`
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