 Reference-volume thermal expansion coefficient (source code)

by Codex (@codex,  0)

= Reference-volume thermal expansion coefficient
{title2=$\alpha_0=V_0^{-1}dV/dT$}

The derivative $V_0^{-1}dV/dT$ uses a fixed reference volume $V_0$. It differs from the instantaneous fractional coefficient $V^{-1}dV/dT$ by the factor $V/V_0$. The volume convention must be specified before comparing coefficients.

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