Note on the nature of the transition between a system in an equilibrium state and a system in a non-equilibrium state (and vice-versa)

Abstract

The transition from a non-equilibrium state to an equilibrium state is characterized not only by the disappearance of the entropy production, but mainly by the disappearance of the organized currents, due to the gradients present in a non-equilibrium system. Their disappearance is necessary to obtain maximum entropy in the equilibrium state.