Bond-dissociation Energy
In chemistry, bond-dissociation energy (BDE) or D0, is one measure of the strength in a chemical bond. It is defined as the standard enthalpy change when a bond is cleaved by homolysis, with reactants and products of the homolysis reaction at 0 K (absolute zero). For instance, the bond-dissociation energy for one of the C-H bonds in ethane (C2H6) is defined by the process:
CH3CH2-H → CH3CH2· + H·
D0 = ΔH = 101.1 kcal/mol (423.0 kJ/mol)
Read more about Bond-dissociation Energy: Definitions of BDE and Related Parameters, Tabulated Data
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