Capillary constant and surface tension of liquefied gases saturated with helium

Abstract

The effect of helium on the capillary constant and surface tension of liquefied gases is examined. Experimental data are analyzed in the framework of the finite thickness layer method. It is noted that owing to its low solubility and considerable surface activity, helium, depending on the kind of solvent and state parameters, may act as a surface-active and an inactive substance. The possibility to use the concept of thermodynamic similarity in describing the properties of the liquid–gas interface in solutions is discussed.