2000/04/18 by B. Zilbergleyt, Zilbergleyt, B. · 1 citation
Chemistry · Engineering · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Chemical Physics (physics.chem-ph) #FOS: Physical sciences #Phase Equilibria and Thermodynamics #physics.chem-ph #thermodynamics and calorimetric analyses
paper · pdf · doi:10.48550/arxiv.physics/0004035
e-mail: [email protected] PDF, 10 pages,minor corrections
openalex publication_date 2000/04/18 · arxiv created 2000/05/14 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The article presents new model of equilibrium in open chemical systems suggesting a linear dependence of the reaction shift from equilibrium in presence of the external thermodynamic force. Basic equation of this model contains traditional logarithmic term and a non-traditional parabolic term. At isolated equilibrium the non-traditional term equals to zero turning the whole equation to the traditional form of constant equation. This term coincides with the excessive thermodynamic function revealing linear relationship between logarithm of the thermodynamic activity coefficient and reaction extent at open equilibrium. Discovered relationship prompts us to use in many systems a combination of the linearity coefficient and reaction shift from true equilibrium rather then activity coefficients. The coefficient of linearity can be found by thermodynamic computer simulation while the shift is an independent variable defining the open equilibrium state. Numerical data obtained by various simulation techniques proved premise of the method of chemical dynamics.