Kelvin equation
From SklogWiki
The Kelvin equation is used to calculate the onset/occurrence of capillary condensation
\[\ln \left( \frac{p}{p_0}\right) = - \frac{2\gamma_{lg}}{RT\rho_lH}\]
Where p is the pressure, \(p_0\) is the saturated vapour pressure, \(\gamma_{lg}\) is the liquid-gas surface tension for the bulk fluid, \(\rho_l\) is the density of the bulk fluid, R is the molar gas constant, T is the temperature and H is the pore or capillary width.
