Question

The photochemical decomposition of Br2 into free radicals takes place by absorption of radiations of 6232 A. Calculate the bond dissociation energy of Br2 in KJ/mol.

Answer 1

reaction between

and

to form

in presence of light is initiated by the photo decomposition of

into free Br atoms (free radicals) by absorption of light. The bond dissociation energy of

is