A Thermodynamic Approach to Kinetics of Reactions
-
Elisabetta Arato
und
Angelo Morro
Abstract
The paper deals with a reacting fluid mixture. The balance equations are stated both in the Lagrangian and in the Eulerian description. The entropy principle is stated in terms of the entropy growths of the single constituents rather than by the classical entropy transport equation. Next the thermodynamic restrictions on the constitutive functions are derived by assuming that the partial pressures, entropies and internal energies are functions of the temperature and the pertinent mass density. As a consequence, the rate of reaction is shown to be proportional to the chemical affinity via a non-linear function of pressure, temperature, and mass fractions. The chemical affinity is then shown to be the derivative of the Gibbs free energy with respect to the reaction coordinate if the free energy density is in the standard form of a function of temperature and pressure while such is not the case if the model is adopted for a mixture of perfect gases.
©2014 Walter de Gruyter Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- A Thermodynamic Approach to Kinetics of Reactions
- Thickness Dependent Photoelectrochemical Performance of Chemo-Synthesized Nanostructured CdS Thin Films
- Pore Size Estimation of Mesoporous Materials through Surfactant Self-Assembly Prediction
- Viscosities and Densities of Phosphonium-Based Ionic Liquids Mixed with Dodecane
- The Thermodynamic Estimation and Viscosity, Electrical Conductivity Characteristics of 1-Alkyl-3-Methylimidazolium Thiocyanate Ionic Liquids
- Searching for Aromatic Chelate Rings. Oxygen versus Thio and Seleno Ligands
Artikel in diesem Heft
- Frontmatter
- A Thermodynamic Approach to Kinetics of Reactions
- Thickness Dependent Photoelectrochemical Performance of Chemo-Synthesized Nanostructured CdS Thin Films
- Pore Size Estimation of Mesoporous Materials through Surfactant Self-Assembly Prediction
- Viscosities and Densities of Phosphonium-Based Ionic Liquids Mixed with Dodecane
- The Thermodynamic Estimation and Viscosity, Electrical Conductivity Characteristics of 1-Alkyl-3-Methylimidazolium Thiocyanate Ionic Liquids
- Searching for Aromatic Chelate Rings. Oxygen versus Thio and Seleno Ligands
