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C2H2(g) + 2 H2(g)--> C2H6(g)

Bond Bond Energy (kJ/mol)
C-C 347
C=C 611
C-H 414
H-H 436
Calculate the value of the C C (triple bond) energy in C2H2 in kJ/mole.

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2 answers

  1. It appears to me that one needs the delta H for the reaction. Perhaps another tutor will see it differently.

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  2. - 311.4 kJ = [(2) (436) + E* + (2) (414)] - [(347) + (6) (414)]
    E* = 820 kJ

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