Dissipation-driven selection of states in non-equilibrium chemical networks

Author:

Busiello Daniel MariaORCID,Liang ShilingORCID,Piazza FrancescoORCID,De Los Rios PaoloORCID

Abstract

AbstractLife has most likely originated as a consequence of processes taking place in non-equilibrium conditions (e.g. in the proximity of deep-sea thermal vents) selecting states of matter that would have been otherwise unfavorable at equilibrium. Here we present a simple chemical network in which the selection of states is driven by the thermodynamic necessity of dissipating heat as rapidly as possible in the presence of a thermal gradient: states participating to faster reactions contribute the most to the dissipation rate, and are the most populated ones in non-equilibrium steady-state conditions. Building upon these results, we show that, as the complexity of the chemical network increases, the velocity of the reaction path leading to a given state determines its selection, giving rise to non-trivial localization phenomena in state space. A byproduct of our studies is that, in the presence of a temperature gradient, thermophoresis-like behavior inevitably appears depending on the transport properties of each individual state, thus hinting at a possible microscopic explanation of this intriguing yet still not fully understood phenomenon.

Publisher

Springer Science and Business Media LLC

Subject

Materials Chemistry,Biochemistry,Environmental Chemistry,General Chemistry

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