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5 August, 11:20

Iodine molecules separates into atoms after absorbing light of 450 nm. If one

quantum of radiation of such light is absorbed by each molecule, calculate the kinetic

energy of the iodine atoms if the bonding energy is 3.984x10-19 J.

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Answers (1)
  1. 5 August, 14:41
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    Answer:E = hc/? = 4.41 x 10-19 J

    Energy absorbed by each atom:

    E (atom) = 2.205 x 10-19 J

    Now Bond Energy of each molecule (B) = 3.98 x J

    So, for each atom 1.99 x 10-19 J

    So now

    KE of each atom = E (atom) - B (atom)

    = 2.15 x 10-19 J
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Home » Physics » Iodine molecules separates into atoms after absorbing light of 450 nm. If one quantum of radiation of such light is absorbed by each molecule, calculate the kinetic energy of the iodine atoms if the bonding energy is 3.984x10-19 J.
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