Linear and non-linear theories of solvation forces in fluids
- 1 March 1981
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 42 (4) , 767-777
- https://doi.org/10.1080/00268978100100621
Abstract
From an exact expression for the free energy of a non-uniform classical fluid, due to Saam and Ebner, a closure is used to develop a non-linear theory for the density and solvation force between two planar walls. In the linear limit these expressions reduce to ones used successfully elsewhere. Numerical solution of the equations for a hard sphere fluid shows that while the density profiles predicted by the two theories are markedly different, the solvation forces are similar.Keywords
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