A Numerical Study of Molecular Motion in the Osmotic Equilibrium

Abstract

With the aid of molecular dynamics, osmotic equilibrium between ideal solution and pure solvent separated by semi-permeable membranes is investigated numerically.The method using phantom molecules is developed to model the membranes reflecting solute molecules.The validity of van't Hoff law for the osmotic pressure is confirmed over a range of concentration up to 0.1 in mole fraction.