Abstract
Summary This paper contains an approximate method of calculating the communal entropy of an assembly of monatomic particles. The method of dealing with dense systems may be regarded as an extension of that used by Lennard-Jones and Devonshire in their theory of liquids and dense gases. The available volume is divided into cells and the communal free energy expressed in terms of a set of parameters related to the probability of two, three or more particles occupying a given cell simultaneously. Application to an assembly of rigid spheres leads to the conclusion that the communal entropy does not become appreciable until the available volume is over five times that of a close-packed assembly. This suggests that, for more accurate intermolecular potentials, the communal entropy is practically zero in the solid and liquid states, but that the extra terms in the free energy may have an appreciable effect on the calculated critical constants and vapour pressures.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
