Consider the following rotational temperatures of diatomic molecules: qr(N2) = 2.9K, qr(HD) = 64.7K Assuming classical behaviour (i.e. continuum approximation): (i)  Estimate the number of accessible rotational energy levels at 290 K for both molecules.  (ii)  In which case would the classical approximation be accurate?

Elements Of Electromagnetics
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  1. Consider the following rotational temperatures of diatomic molecules: qr(N2) = 2.9K, qr(HD) = 64.7K

    Assuming classical behaviour (i.e. continuum approximation):

    1. (i)  Estimate the number of accessible rotational energy levels at 290 K for both

      molecules. 

    2. (ii)  In which case would the classical approximation be accurate? 

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