Given That ΔH°= -311 KJ for the Hydrogenation of Acetylene,C₂H₂

question 4

Multiple Choice

Given that ΔH°= -311 kJ for the hydrogenation of acetylene,C₂H₂: H-C C-H(g) + 2 H₂(g) → CH₃-CH₃(g)
And the following bond dissociation energies,estimate a value for the C-to-C triple bond dissociation energy.

• A)1050 kJ/mol
• B)833 kJ/mol
• C)807 kJ/mol
• D)397 kJ/mol

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