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A mixture of 2 mol of carbon monoxide an...

A mixture of 2 mol of carbon monoxide and 1 mol of oxygen in a closed vessel is ignited to get carbon dioxide , then

A

`DeltaH gt DeltaE`

B

`DeltaH lt DeltaE`

C

`DeltaH = DeltaE`

D

Not definite.

Text Solution

Verified by Experts

The correct Answer is:
B
`2CO(g) +O_(2)(g) to 2CO_(2)(g)`
`Delta n_(g) =2-(2+1)= -1`
`DeltaH =DeltaE +Deltan_(g) RT or DeltaH = DeltaE-1RT`
i.e. `DeltaH lt DeltaE`
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