Explain what is the longest wavelength

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Reference no: EM13211464

By using photons of specific wavelengths, chemists can dissociate gaseous H-I to produce H atoms with accurately known speeds. When H-I dissociates, the H atoms move away rapidly, whereas the relatively heavy I atoms move little. Average Bond Energies.

(a) What is the longest wavelength (in nm) that can dissociate a molecule of H-I? in nm.

(b) If a photon of 218 nm is used, what is the excess energy (in J) over that needed for the dissociation?

Reference no: EM13211464

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