34 AH, CHs 12.5 kcalHeat of atomisation of C 171 kcalBond energy of H2 – InterviewSolution

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1.

34 AH, CHs 12.5 kcalHeat of atomisation of C 171 kcalBond energy of H2 104.3 kcalBond energy C- H 99.3 kcalWhat is C- C bond energy?(1) 1409 kcal(3) 40 kcal(2) 49 kcal(4) 76 kcal

Answer»

WE need to take 2 atomization of C+4 atomization of H+4 bond energy pf C-H1 heat formation of C2H4

2 x 171 + 4 x 52.1 - 4 x 99.3 - K = 12.5k= 140.7 Kcal

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