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Heat of combustion of gaseous isoprene (...

Heat of combustion of gaseous isoprene `(C_(5) H_(8))`
`CH_(2) = CH - C = underset(CH_(3))underset(|)(C) H_(2)` to `CO_(2) (g) ` & `H_(2) O (l) ` is -3186 kJ/mole .
Calculate the heat of formation and compare with bond energies. Calculate the resonance energy of isoprene.
Given `: Delta_(f) H (CO_(2) , g) = -393 .5 ` kJ/mol , `Delta_(f) H (H_(2) O , l) = -285.84` kJ/mol
Bond energies of ` C- H , C - C ` & C = C are 413 , 348 and 615 kJ .
Heat of atomization of carbon and `H_(2)` are 718.4 and 435.8`

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`-30.06` kJ/mol
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