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: H-H = 436 kJ/mol, C-H = 413 kJ/mol, and C-C = 348 kJ/mol, estimate a value for the C≡C triple bond dissociation energy?

Hydrogen, a potential future fuel, can be produced from carbon (from coal) and steam by this reaction: C(s) + 2 H2O(g) -> H2(g) + CO2(g). Use average bond energies to calculate ΔHrxn for the reaction.

Is this question formulated correctly? If not, please fix it and return the output as a JSON of the form: {'question': 'question text'}. Here is the question: Calculate ΔH° for the reaction H2(g) + Br2(g) → 2 HBr(g) using bond energy values. The ΔH°f of HBr(g) is not equal to one-half of the value calculated. Account for the difference.

Use bond energies to estimate the enthalpy change for the formation of HBr(g) from H2(g) and Br2(g). Given: BE(H-H) = 436 kJ/mol, BE(Br-Br) = 192 kJ/mol, BE(H-Br) = 366 kJ/mol.

Use the bond energies in Chemistry 2e of your textbook to determine the approximate enthalpy change for the following reaction: H2(g) + 1/2 O2(g) → H2O(g). What is the approximate enthalpy change (ΔH) for this reaction?

Given the bond energies: Br-Br = 192 kJ/mol, C≡C = 839 kJ/mol, C-Br = 276 kJ/mol, estimate ΔH°rxn for the reaction 2 Br2(l) + C2H2(g) → C2H2Br4(l). What is the ΔH°rxn?

Use the bond energies provided to estimate ΔH°_rxn for the reaction: 2 Br2(l) + C2H2(g) → C2H2Br4(l). What is the estimated ΔH°_rxn?