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At constant temperture and pressure whic...

At constant temperture and pressure which one of the following statements is correct for the reaction ?
`CO(g)+ 1/2O_(2)(g) to CO_(2)(g)`

A

`DeltaH = DeltaE`

B

`DeltaH lt DeltaE`

C

`DeltaH gt DeltaE`

D

`DeltaH` is independent of physical state of reactant

Text Solution

Verified by Experts

The correct Answer is:
b
As we know , `DeltaH=(- 1348.9 xx10^(3))+ 11xx2xx298=-1342.34 kcal`
for the reaction , `CO(g)+1/2O_(2)(g) to CO_(2)(g)`
` Deltan=1-(1+1/2) =-1/2`
`DeltaH=DeltaE-1/2 RT`
`DeltaH lt DeltaE`
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