Chemistry - Atomic Structure Question with Solution | TestHub

The energy required to break one mole of Br-Br bonds in $B{r}_2$ is 193 kJ $mo{l}^{-1}$. The longest wavelength of light that can break a single Br-Br bond is $(h=6.626\times 10^{-34}\mathrm{J}$ s, $c=3\times 10^{8}m{s}^{-1}$, NA = $6.02\times 10^{23}mo{l}^{-1})$