
(i)
Interpretation:
The relative numbers of
Concept introduction:
The complex vibrations exhibit by the polyatomic molecule is known as normal modes of vibrations. The vibrational modes of a molecule are IR or Raman active. If a molecule has a centre of symmetry, then the modes which are IR-active will be Raman inactive and the modes that are IR-inactive will be Raman active. The relative population at two vibrational states is given by Boltzmann distribution as shown below.
(ii)
Interpretation:
The relative number of
Concept introduction:
As mentioned in the concept of introduction in part (i).

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Chapter 11 Solutions
ATKINS' PHYSICAL CHEMISTRY-ACCESS
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