Thermodynamic Driving Forces and Chemical Reaction Fluxes; Reflections on the Steady State
Language English Country Switzerland Media electronic
Document type Journal Article
PubMed
32041273
PubMed Central
PMC7036932
DOI
10.3390/molecules25030699
PII: molecules25030699
Knihovny.cz E-resources
- Keywords
- chemical kinetics, chemical thermodynamics, driving force, reaction flux, reaction rate,
- MeSH
- Models, Chemical MeSH
- Physical Phenomena MeSH
- Kinetics MeSH
- Chemistry Techniques, Synthetic methods MeSH
- Thermodynamics MeSH
- Publication type
- Journal Article MeSH
Molar balances of continuous and batch reacting systems with a simple reaction are analyzed from the point of view of finding relationships between the thermodynamic driving force and the chemical reaction rate. Special attention is focused on the steady state, which has been the core subject of previous similar work. It is argued that such relationships should also contain, besides the thermodynamic driving force, a kinetic factor, and are of a specific form for a specific reacting system. More general analysis is provided by means of the non-equilibrium thermodynamics of linear fluid mixtures. Then, the driving force can be expressed either in the Gibbs energy (affinity) form or on the basis of chemical potentials. The relationships can be generally interpreted in terms of force, resistance and flux.
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