Article révisé par les pairs
| Résumé : | The local number density and the pair correlation function of a finite system of interacting molecules are expressed in the form of a cluster expansion in powers of the activity in such a way that all surface effects are retained. By a careful definition of new types of cluster integrals, it is possible to reexpress the density and the pair correlation function as power series of the density of the bulk system. The behaviour of the density and of the stress tensor near the external surface of the system is discussed; it is shown that these quantities reproduced fairly well the qualitative features of the actual transition region between a liquid phase and a dilute gas phase. © 1957. |
