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Using the data ( all vaues in kcal mol^(...

Using the data `(` all vaues in `kcal mol^(-1) at 25^(@)C)` given below, calculate bond energy of `C-C` and `C-H` bonds.
`C_((s))rarr C_((g)), DeltaH=172`
`H_(2) rarr 2H, DeltaH=104`
`H_(2)+(1)/(2)O_(2) rarr H_(2)O_((l)), DeltaH=-68.0`
`C_((s))+O_(2) rarr CO_(2), Delta H=-94.0`
Heat of combustion of `C_(2)H_(6)=-372.0`
Heat of combustion of `C_(3)H_(8)=-530.0`

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