Describe the conseuences of high bond enthalpy of H-H bond in terms of chemical reactivity of digydrogen.

Describe the conseuences of high bond enthalpy of H-H bond in terms of

1.	Describe the conseuences of high bond enthalpy of H-H bond in terms of chemical reactivity of digydrogen.
Answer» Solution :The bond enthalpy or bond dissociation enthalpy of DIHYDROGEN `(H_(2))` is very HIGH `(DeltaH=435.9kJ mol^(-1))`. This is on account of its small atomic SIZE and also samall bond length (74cm) of H-H bond. Conseqentely, the bond cleavage is extremely difficult and molecular hydrogen or dihydrogen takes PART in chemical reaction only under sepcific conditions.