The dissociation energy of `H_(2)` is `430.53 kJ mol^(-1), `If `H_(2)` is of dissociated by illumination with radiation of wavelength `253.7 nm` , the fraction of the radiant energy which will be converted into ikinetic energy is given by

Answer

`8.86%`

Explanation

%conversion in KE`=((hc//lambda-E_(Diss)))/((hc//lambda))xx100("put " E_(Diss) " in J/atoms")`
`=8.68%`