The highly reactive OH radical (a species with an unpaired electron) is believed to be involved in

Question:

The highly reactive OH radical (a species with an unpaired electron) is believed to be involved in some atmospheric processes. Table 9.4 lists the bond enthalpy for the oxygen-to-hydrogen bond in OH as 460 kJ/mol. What is the longest wavelength (in nm) of radiation that can bring about the reaction
OH(g) → O(g) + H(g)