Mathematische aspekte zu einer methode zur numerischen bestimmung individueller thermodynamischer aktivitätskoeffizienten einzelner ionensorten in konzentrierten elektrolytlösungen |
| |
Authors: | Armin Ferse Peter Neuman |
| |
Institution: | 1. Institut für Technologie der Fasern , ADW der DDR , Hohe Stra?e 6, Dresden, DDR-801;2. TD der DDR , Institut für Tehnologie der fasern , Zellescher Weg 12-14, Dresden, DDR-8027 |
| |
Abstract: | The mathematical problems of the – in an communication 3] described – principle for the calculation of individual thermodynamic activity coefficients of single ionic species in concentrated electrolyte solutions are specified. It is the Newtonian approximation method that makes possible the evaluation of the constants b 1,…b 4 in the concentration function (0.1) for the product of the activity coefficients. The efficiency of the method is represented by the example of the activity coefficients of pure and of – with other electrolytes – mixed solutions of NaCIO4. The individual activity coefficients of the single ionic species are evaluated for several electrolytes of the concentration range from m = 0 to m = 10 mole/kg and published at another place 3, 17, 18]. |
| |
Keywords: | Best linear estimation beat quadratic estimation GAUSS-MARKOV estimators genetic models |
|
|