2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/184732A nonlinear autocatalysis of a chiral substance is shown to achieve homochirality in a closed system, if the back-reaction is included. Asymmetry in the concentration of two enantiomers or the enantiometric excess increases due to the nonlinear autocatalysis. Furthermore, when the back-reaction is taken into account, the reactant supplied by the decomposition of the enantiomers is recycled to produce more and more the dominant one, and eventually the homochirality is established.4 pages, 2 figuresChemical PhysicsAstrophysicsBiological PhysicsPopulations and Evolutiontext