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The O-O bond has an energy of 145 kJ / mol. To find the longest wavelength that can break the bond use the relationship E = h * c / w where h is Planck's constant 6.626 x 10^-34 m^2 kg / s and c is the speed of light 2.998 x 10 ^ 8 m / s. Solve for w so w = h * c / E.

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Q: What is the longest wave lenght of radiation that possesses the necessary energy to break the O-O bond?
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What is the longest wavelength of radiation that possesses the necessary energy to break o -o bond?

ΔE = hc / λ λ = hc / ΔE ΔE = 495kJ / mol 4.95x105 / 6.023x1023 = 8.22x10-19 per atom... λ = (3.00x108) x (6.63x10-34) / 8.22x10-19 λ = 2.41x10-7m or 241x10-9m λ = 241nm 241nm lies in the ultraviolet region


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