Acerca de la moderación y los sistemas abiertos en equilibrio químico

In this paper, the validity of the rule of the moderation of molar fractions for equi Iibrium displacements in open systems is questioned. Moreover, it is shown that moderation is guaranteed in terms of molar concentration by such systems. Thus, the Le Chatelier's principie can always be applied as a theorem of moderation of molar conccntrations.