The minimum energy required to break the oxygen-oxygen bond in O2 is 495 kJ/mol.?

Question

a. What is the longest wavelength of radiation that possesses the necessary energy to break the O—O bond?

b. What type of electromagnetic radiation is this?

Answer 1

495kJ/mole
=495kJ/6.0210^23 by molecule=8.22610^-19J/molécule=E

you have E= hc/wavelength hence

wavelength= hc/E = 6.6210^-34*310^8/8.22610^-19
= 241.5nm

This is a UV radiation