Dissociation Treatment of Condensing Systems. II

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Abstract
In a previous paper under the above title, in future referred to as Part I, it was shown how the theory of dissociating assemblies could be applied to an example containing only one component type of molecule which can form clusters of any size. The results were claimed as equivalent with those of Mayer (see reference 3, a and b). In a private communication Dr. Mayer has pointed out to the writer that this claim is only approximately correct, because the clusters were treated as of negligible size, excluded volumes being ignored. It is therefore necessary to regard Part I as giving a ``perfect gas analogy'' for the theory of the saturated vapor pressure curves at temperatures well below the critical value. The present paper develops the more accurate theory by taking into account the excluded volumes and, besides the s‐v‐p curves, also presents a complete set of equations for the isothermals of the gas and vapor right through the critical temperature.

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