Calculation of immersion enthalpy data from adsorption isotherms
| Autor: | Rico Rockmann, Grit Kalies, Renaud Denoyel |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Alkane
chemistry.chemical_classification Chemistry Enthalpy Thermodynamics Thermodynamic equations Surfaces Coatings and Films Electronic Optical and Magnetic Materials Biomaterials Colloid and Surface Chemistry Adsorption Hydrocarbon Immersion (mathematics) medicine Physics::Chemical Physics Ternary operation Activated carbon medicine.drug |
| Zdroj: | Journal of colloid and interface science. 282(2) |
| ISSN: | 0021-9797 |
| Popis: | The thermodynamic equations for the calculation of binary and ternary immersion data in excess formalism are presented. Immersion enthalpies and entropies of the n-hexane/n-octane, n-octane/n-tetradecane and n-hexane/n-tetradecane binary mixtures as well as the n-hexane/n-octane/n-tetradecane ternary mixture on activated carbon are calculated from the temperature dependence of adsorption isotherms. In order to evaluate the quality of the calculations, the calculated immersion enthalpies of the binary mixtures on activated carbon are compared with those that were measured calorimetrically. It is shown that phenomenological thermodynamics can be used successfully to predict calorimetric data on the basis of adsorption excess isotherms. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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