摘要: When two phases are in equilibrium, the density and chemical composition of each remains uniform up to interface. Within interface thermodynamic densities not uniform, but rather vary continuously from values they have one bulk other. In Figure 1 we see a hypothetical profile p as function distance z perpendicular interface, liquid-vapor equilibrium. Such profiles constitute what may call structure We wish determine this theoreticfally, also interfacial tension, relate latter former.