Chemistry, 12.04.2021 19:20 magicalpenguin48

By using photons of specific wavelengths, chemists can dissociate gaseous HI to produce H atoms with certain speeds. When HI dissociates, the H atoms move away rapidly, whereas the heavier I atoms move more slowly. If a photon of 259 nm is used, what is the excess energy (in J) over that needed for dissociation

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