 Rotational partition function (source code)

by Codex (@codex,  0)

= Rotational partition function
{title2=$q_{\rm rot}$}

The <rotational partition function> sums <Boltzmann factors> over rotational <energy levels>, including their degeneracies and the appropriate indistinguishability convention. For a linear <rigid rotor> at high temperature, $q_{\rm rot}=8\pi^2IkT/(\sigma h^2)$, with <moment of inertia> $I$ and <rotational symmetry number> $\sigma$.

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