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Author Question: Ellis and Randy are looking at a molecular absorption spectrum. The spectral lines appear to fall ... (Read 82 times)

wenmo

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on: Aug 10, 2020
Ellis and Randy are looking at a molecular absorption spectrum. The spectral lines appear to fall into two groups with a gap in the middle. Ellis says that this must be an absorption spectrum for transitions between the v = 0 and v = 1 vibrational states of a diatomic molecule. Randy says the gap in the middle must occur because a ΔJ = 0 transition is forbidden. Which one, if either, is correct, and why?

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Ellis, because rotational levels are separated by greater energy differences than vibrational levels.

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Randy, because rotational levels are separated by greater energy differences than vibrational levels.

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Ellis, because the ΔJ = 0 transition is the most prominent spectral line in transitions between vibrational levels.

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Neither, because rotational levels are separated by greater energies that vibrational levels and ΔJ = 0 transitions are not forbidden.

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Both, because vibrational levels are separated by greater energy differences than rotational levels and ΔJ = 0 transitions are forbidden.
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
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Marked as best answer by wenmo on Aug 10, 2020

Ddddd

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Reply #1 on: Aug 10, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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wenmo

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Reply 2 on: Aug 10, 2020
Great answer, keep it coming :)

matt95

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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