1.

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)

Answer»

`DeltaH = DELTAE`
`DeltaH lt DeltaE`
`DeltaH gt DeltaE`
`DeltaH` is independent of PHYSICAL state of reactant

Solution :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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