The minimum energy required to break the oxygen-oxygen bond in oxygen is 495 kJ/mol. What is the longest wavelength of radiation that possesses the necessary energy to break this bond? What type of electromagnetic radiation is this?

241 nm, it is UV light range

Explanation:

The minimum energy needed required to break the oxygen-oxygen bond = 495 kJ/mol

Energy needed for 1 molecule of oxygen = 495 * 10³ J / avogadro's constant = 495 * 10³ J / (6.02 * 10²³) = 8.223 * 10⁻¹⁹ J

Energy = hv

where h = Planck constant = 6.626 * 10 ⁻³⁴ m²kg/s and v = frequency

c speed of light = vλ

c / λ = v

E = hc / λ

λ = hc / E = (6.626 * 10 ⁻³⁴ m²kg/s * 3.0 * 10 ⁸ m/s) / (8.223 * 10⁻¹⁹ J) = 2.41 * 10⁻⁷m = 241 nm

UV light wavelength is between 400 nm - 10 nm