Neco Model Questions Vol1 2022 Chemistry Question 3
Practice objective / multiple choice question 3 from the 2022 Neco Model Questions Vol1 Chemistry examination.
The standard enthalpy of formation of carbon dioxide is \(\Delta_f H^\circ(\mathrm{CO_2(g)}) = -393.5\ \text{kJ mol}^{-1}\) and that of carbon monoxide is \(\Delta_f H^\circ(\mathrm{CO(g)}) = -110.5\ \text{kJ mol}^{-1}\). The O=O bond dissociation energy is 498 kJ mol\(^{-1}\). Using Hess's law, determine the average bond energy of a C=O bond in \(\mathrm{CO_2}\).
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This is Neco Model Questions Vol1 2022 Chemistry Question 3. It is one of the objective questions from the 2022 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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