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Calculate Delta(f)H^(Theta) ICI(g) from ...

Calculate `Delta_(f)H^(Theta) ICI(g)` from the data
`DeltaH` dissociation `CI_(2)(g) = 57.9 kcal mol^(-1)`
`DeltaH` dissociation `I_(2)(g) = 36.1 kcal mol^(-1)`
`DeltaH` dissociation `ICI(g) = 50.5 kcal mol^(-1)`
`DeltaH` sublimation `I_(2)(g) = 15.0 kcal mol^(-1)`

Text Solution

Verified by Experts

`(1)/(2)CI_(2)+(1)/(2)I_(2)(s)rarrICI(g) Delta_(f)H = ?`
`{:(1//2),(1//2),(1//2),(),():}{{:(I_(2)(g)to2I(g),","DeltaH_(1)=36.1xx1//2),(Cl_(2)(g)to2Cl(g),"," DeltaH_(2)=57.9xx1//2),(I_(2)(g)toI_(2)(g),"," DeltaH_(3)=15.0xx1//2),(ICI(g)toI(g)+Cl(g)"," DeltaH_(4)=50.5),(ulbar(DeltaH=1/2(36.1+57/9+15.0)-50.5=4kcalmol^(-1))):}`
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