Stefan's formula

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[edit] Stefan's formula about specific surface energy

Stefan’s formula says that the specific surface energy at a given interface is determined by the respective enthalpy difference \scriptstyle \Delta H^*.

\sigma = \gamma_0 \left( \frac{\Delta H^*}{N_A^{1/3}V_m^{2/3}}\right),

where σ is the specific surface energy, NA is Avogadro's number, γ0 is a steric dimensionless coefficient, and Vm is the molar volume.

[edit] 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

[edit] Yet another Stefan's formula

Stefan's formula (not to be confused with the Stefan's law) describes the dependence of the thickness of ice cover on freezing temperature.

[edit] References