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ntHeat of formation of C2H4 = 12.5 kcaln ntHeat of atomisation of C = 171 kcaln ntHeat of atomisation of H = 52.1 kcaln ntBond energy C-H = 99.3 kcaln ntWhat is C=C bond energy ?n ntn |
| Answer» ntHeat of formation of C2H4 = 12.5 kcaln ntHeat of atomisation of C = 171 kcaln ntHeat of atomisation of H = 52.1 kcaln ntBond energy C-H = 99.3 kcaln ntWhat is C=C bond energy ?n ntn | |