1.

Consider the reactionsC(s)+2H_(2)(g)rarrCH_(4)(g),DeltaH=-x kcalC(g)+4H(g)rarrCH_(4)(g), DeltaH=-x_(1) kcalCH_(4)(g)rarrCH_(3)(g)+H(g),DeltaH=+y kcal The bond energy of C - H bond is

Answer»

y KCAL `mol^(-1)`
`x_(1)` kcal `mol^(-1)`
`X//4` kcal `mol^(-1)`
`x_(1)//4` kcal`mol^(-1)`

SOLUTION :The BOND energy of C-H bond is y kcal `mol^(-1)`.


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