Changes

==Method==

==Method==

Displacement pressure can be estimated from pore size using Washburn's<ref name=ch10r90>Washburn, E., W., 1921, Note on a method of determining the distribution of pore sizes in a porous material: Proceedings of the National Academy of Science, vol. 7, p. 115–116.</ref> equation,

[[Displacement pressure]] can be estimated from pore size using Washburn's<ref name=ch10r90>Washburn, E., W., 1921, Note on a method of determining the distribution of pore sizes in a porous material: Proceedings of the National Academy of Science, vol. 7, p. 115–116.</ref> equation,

:<math>\mbox{P}_{\rm d} = \frac{-2\gamma \cos \theta}{\mbox{r}}</math>

:<math>\mbox{P}_{\rm d} = \frac{-2\gamma \cos \theta}{\mbox{r}}</math>