able 1. Microwave Absorption Lines for Several Rotational Transitions of the CO Molecule. Rotational Transition Wavelength of Absorbed Line (m) Frequency of Absorption Line (Hz) l = 0 -> l = 1 2.60·10-3 1.15·1011 l = 1 -> l = 2 1.30·10-3 2.30·1011 l = 2 -> l = 3 8.77·10-4 3.46·1011 l = 3 -> l = 4 6.50·10-4 4.61·1011
able 1. Microwave Absorption Lines for Several Rotational Transitions of the CO Molecule. Rotational Transition Wavelength of Absorbed Line (m) Frequency of Absorption Line (Hz) l = 0 -> l = 1 2.60·10-3 1.15·1011 l = 1 -> l = 2 1.30·10-3 2.30·1011 l = 2 -> l = 3 8.77·10-4 3.46·1011 l = 3 -> l = 4 6.50·10-4 4.61·1011
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter20: Molecular Spectroscopy And Photochemistry
Section: Chapter Questions
Problem 51AP
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Question
The CO molecule undergoes a rotational transition from the l=1 level to the l=2 level. Using the Table 1, calculate:
a. the reduced mass of the molecule,
b. the bond length of the molecule.
Table 1. Microwave Absorption Lines for Several Rotational Transitions of the CO Molecule.
|
Rotational Transition |
Wavelength of Absorbed Line (m) |
Frequency of Absorption Line (Hz) |
|
l = 0 -> l = 1 |
2.60·10-3 |
1.15·1011 |
|
l = 1 -> l = 2 |
1.30·10-3 |
2.30·1011 |
|
l = 2 -> l = 3 |
8.77·10-4 |
3.46·1011 |
|
l = 3 -> l = 4 |
6.50·10-4 |
4.61·1011 |
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