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 ${\displaystyle \scriptstyle \Delta H^{*}}$.

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

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

References

• Guencheva, V., Grantscharova, E. & Gutzow, I., Thermodynamic Properties of the Amorphous and Crystalline Modifications of Carbon and the Metastable Synthesis of Diamond, Cryst. Res. Technol., 2001, 36, 1411–1428