On the closure conjectures for the Gibbsian approximation model of a binary droplet

The problem of closing the Gibbsian approximation (GA) droplet model was studied. Theoretical results were illustrated by numerical evaluations for binary nucleation in water-methanol vapor mixture at T = 298.15 K. The predictions of the GA model with those of density functional theory were also compared. The results show a striking increase in the droplet surface tension with decreasing droplet size at constant overall droplet composition.