The dissociation energy of $H_2$ is 430.53 KJ$mol^{-1}$. If $H_2$ is exposed to radiation energy of wavelength 253.7nm, what % of radiant energy will be converted into kinetic energy ?

Question

$(a)\;9.3\%\qquad(b)\;8.68\%\qquad(c)\;7.36\%\qquad(d)\;9.24\% $