Question

What is the bond enthalpy of the carbon-oxygen double bond in a carbon dioxide molecule (CO2), given that the bond dissociation energies for C-O single and double bonds are 351 kJ/mol and 799 kJ/mol, respectively?

Answer 1

The bond enthalpy of the carbon-oxygen double bond in a carbon dioxide molecule  CO2  is given as the bond dissociation energy for the C=O double bond. In this case, the bond dissociation energy for the C=O double bond is provided as 799 kJ/mol. Therefore, the bond enthalpy of the carbon-oxygen double bond in CO2 is 799 kJ/mol.