i have a question regarding calculating the thermal expansion parameter [tex]\alpha[/tex](adsbygoogle = window.adsbygoogle || []).push({});

it is given by:

[tex]\alpha = \frac{1}{L} \frac{\partial L}{\partial T} = \frac{1}{3B} \sum \frac{\partial(hw)}{\partial V} \frac{\partial n}{\partial T}[/tex]

now, im not quite sure how i calculate [tex]d(hw)/dV[/tex]. how is [tex]w[/tex] related to [tex]V[/tex]? the only thing i can think of is that [tex]w[/tex] is related to [tex]a[/tex] (the lattice constant) and [tex]a[/tex] is related to [tex]V[/tex] according to the lattice. is that right? and is that the only connection or there are other factors i should take into account?

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# Thermal expansion (anharmonic effect)

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