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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. (a) If a photon of 231 nm is used, what is the excess energy (in J) over that needed for dissociation? (b) If this excess energy is carried away by the H atom as kinetic energy, what is its speed (in m/s)? (Bond energy of HâI is 295 kJ/mol.) Enter your answers in scientific notation.
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. (a) If a photon of 231 nm is used, what is the excess energy (in J) over that needed for dissociation? (b) If this excess energy is carried away by the H atom as kinetic energy, what is its speed (in m/s)? (Bond energy of HâI is 295 kJ/mol.) Enter your answers in scientific notation.
punithg05Lv10
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Nelly StrackeLv2
15 Nov 2019
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