Principles of the equilibrium theory of small multicomponent systems in three aggregate states

摘要: Principles of the molecular statistical theory small multicomponent drops/microcrystals in a three-dimensional bulk and two-dimensional adsorption systems are developed. Equations derived using cluster approach. The describes discrete distributions molecules space (on size scale comparable to size) continuous (at short distances inside cells) upon their translational vibrational motions. provides unified description equilibrium three aggregate states at interfaces. Pair intermolecular interaction potentials (such as Mie potential) several coordination spheres that determine lattice structure compressibility taken into account. For simplicity, it is considered sizes mixture components virtually same. Structural cell distribution functions for transition region curved interfaces derived. Expressions pressure tensor bodies obtained, allowing us calculate thermodynamic characteristics vapor–liquid interface, including surface tension. Questions regarding consistency between phase transitions traditional associate (cluster) formation limited total volume value discussed.