Question

explain bond dissociation enthalpy​

Answer 1

Answer:

Bond dissociation enthalpy can be defined as the standard change in enthalpy when a bond is cleaved via homolytic fission. The products formed from the homolysis of the bond are generally radicals.

Answer 2

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Bond enthalpy or bond dissociation enthalpy of a bond is the energy required to break that bond. For example, H-H bond in H2 molecule, it is 435.8 kJ/mol. For O2 it is 498 kJ/mol. This bond enthalpy not only depends upon the atoms between which this bond is made, but it also depends upon the surroundings.