Kinetic Theory of Dense Gases

Abstract

The Boltzmann equation is found to be determined to arbitrary order in the density as a consequence of the molecular chaos assumption. A three‐body collision approximation is given explicitly and shown to be identical to that implied by the Bogolyubov assumptions; the relation between the molecular chaos assumption and the Bogolyubov assumptions is discussed. It is shown that the Enskog modification of the Boltzmann equation for dense gases composed of rigid spheres is correct, subject to the molecular chaos assumption. The current disagreement over the correct form for this equation is discussed.