Relationship between the Critical Temperatures, Boiling Points and the Parachor Values of Simple Molecules

Abstract

IN previous publications^1,2, it has been pointed out that the critical temperatures and boiling points of chemically related substances containing the same number of molecules are linear functions of the parachor values P, and the van der Waals factor b has been shown to be similarly related. It was suggested that the applicability of such a relation to a distinct series was probably due to the similarity of cohesional and configurational functions characterizing a particular group. Recently, an interesting regularity was observed which gives considerable support to this suggestion.