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From the following bond energies :- H-...

From the following bond energies :-
`H-H "bond energy" = 420 KJmol^(-1)`
`C=-c "bond energy" = 601 KJmol^(-1)`
`C-C "bond energy"=340KJmol^(-1)`
`C-H "bond energy" = 425 KJ mol^(-1)`
Enthalpy for the reaction :-
`C_(2)H_(2)+2H_(2)toC_(2)H_(6)`

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