For a certain diatomic molecule, the lowest-energy photon observed in the vibrational spectrum is 0.12 eV. What is the energy of a photon emitted in a transition from the third excited vibrational energy level to the first excited vibrational energy level, assuming no change in the rotational energy? 0.24 eV
For a certain diatomic molecule, the lowest-energy photon observed in the vibrational spectrum is 0.12 eV. What is the energy of a photon emitted in a transition from the third excited vibrational energy level to the first excited vibrational energy level, assuming no change in the rotational energy? 0.24 eV
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Transcribed Image Text:For a certain diatomic molecule, the lowest-energy photon observed in the vibrational spectrum is 0.12 eV. What is the energy of a photon emitted in a transition from the third
excited vibrational energy level to the first excited vibrational energy level, assuming no change in the rotational energy?
0.24
eV
A large number of these diatomic molecules are found in a diffuse cloud of temperature 28 K in the interstellar medium (the space between stars). What fraction of the
molecules in this cloud would you expect to find in the first excited vibrational state?
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