2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/122318A refinement of an argument due to Maxwell for the equipartition of kinetic energy in a mixture of ideal gases with different masses is proposed. The argument is elementary, yet it may work as an illustration of the role of symmetry and independence postulates in kinetic theory.Classical PhysicsPhysics Educationtext