Generalized compressibility equation for inhomogeneous fluids at equilibrium

Liudmila A. Pozhar, Keith E. Gubbins, Jerome K. Percus

Research output: Contribution to journalArticlepeer-review


A general relation is derived between the pressure tensor in an equilibrated inhomogeneous fluid and the direct correlation function. This relation reduces to the usual compressibility equation for a homogeneous fluid and is to be considered as the generalized compressibility equation. The equation provides a starting point for integral-equation theories and is useful in the rigorous kinetic theory of inhomogeneous fluids.

Original languageEnglish (US)
Pages (from-to)1819-1822
Number of pages4
JournalPhysical Review E
Issue number3
StatePublished - 1993

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics


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