Stefan's formula

In thermodynamics, Stefan's formula says that the specific surface energy at a given interface is determined by the respective enthalpy difference $\Delta H^{*}$ .

\sigma =\gamma _{0}\left({\frac {\Delta H^{*}}{N_{\text{A}}^{1/3}V_{\text{m}}^{2/3}}}\right),

where σ is the specific surface energy, N_A is the Avogadro constant, $\gamma _{0}$ is a steric dimensionless coefficient, and V_m is the molar volume.

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