Surface tensions are needed to calculate the Kelvin effect upon equilibrium vapour pressures above very
small droplets containing dissolved solutes, and therefore their size as a function of
atmospheric relative humidity. The model on this page predicts surface tensions
of pure aqueous solutions and liquid mixtures for 0 − 100 wt% solute and from 150 − 373.15 K (1).
Its characteristics are as follows:
Inputs: temperature, and the
molalities or weight percent of each solute species present.
Outputs: surface tension, and the assigned composition
of the solution in terms of electrolytes.
Methods: follow this link for a summary of the approach used, and a description
of the method used to predict the properties of mixtures from those of single solute solutions.
(1) C. S. Dutcher, A. S. Wexler and S. L. Clegg (2010) Surface tensions of
inorganic multicomponent aqueous electrolyte solutions and melts. J. Phys. Chem. A, 114, 12216-12230.