Part I, The solubility of gases in water-methanol mixtures and derived thermodynamic properties. Part II, Rates of solution of gases

Abstract

Part I - Thermodynamics of solution. The present investigation was carried out as part of a wider plan to determine the effect of methanol in breaking down the water structure in water-methanol mixtures and the possibility of preferential orientation of one or other of the constituent molecules of the solvent in the neighbourhood of the solute molecules.

Part II – Rate of solution of gases in liquids. The rate at which a gas dissolves in a liquid is dependent on the size of the gas molecule and the free volume of the liquid. Therefore, rate measurements on a gas in a series of solvents should give a method of determining the product. The object of this work will be, not so much to add to the already large amount of unrelated diffusion data existing but to give an alternative method of calculating free volumes. Thus if the rate of solution of anyone gas in a solvent is measured it will be possible to calculate the equilibrium solubility of any other gas in the same solvent.