Term: bond energy (mean bond energy)
https://doi.org/10.1351/goldbook.B00701

Definition:
The average value of the gas-phase bond dissociation energies (usually at a temperature of 298 K) for all bonds of the same type within the same chemical species. The mean bond energy for methane, for example, is one-fourth the enthalpy of reaction for: B00701.png Tabulated bond energies are generally values of bond energies averaged over a number of selected typical chemical species containing that type of bond.

Related Terms:
1) bond dissociation energies (http://doi.org/10.1351/goldbook.B00699).
2) bonds (http://doi.org/10.1351/goldbook.B00697).
3) chemical species (http://doi.org/10.1351/goldbook.CT01038).
4) enthalpy (http://doi.org/10.1351/goldbook.E02141).

Image: Not defined (https://goldbook.iupac.org/img/inline/B00701.png) 

Source: PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1090 (https://doi.org/10.1351/pac199466051077)

Citation: 'bond energy (mean bond energy)' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.B00701

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