Determination of a Linear Rule between the Osmotic Coefficients on Mole Fraction Base and Several Different Concentration Expressions in Single Electrolyte Solutions | Chapter 13 | Recent Trends in Chemical and Material Sciences Vol. 2

 In the paper, a linear rule between osmotic coefficients on mole fraction base and each of several concentration expressions is presented, respectively, in single electrolyte solutions containing various valence inorganic acids, alkalies, and salts, such as uniuni-, biuni-, triuni-, tetrauni-, bibi-, and tribi-valence inorganic acids, alkalies, and salts. A thermodynamic model based on the rule is constructed and successfully used to these electrolyte solutions in order to predict and reproduce their traditional osmotic coefficients and other features. such as the decrease of relative molal vapour pressure, equivalent conductivity, solubility, and even ion interaction effects. The instances with positive outcomes have been provided.

Author (S) Details

Zheng Fang
Chemistry and Chemical Engineering College, Central South University, Changsha 410083, P.R. China.

View Book :- https://stm.bookpi.org/RTCAMS-V2/article/view/2914

Presentation of a Model Describing the Osmotic Coefficients and the Activities of Water for Electrolyte Solutions | Chapter 12 | Current Research and Development in Chemistry Vol.3

This work presents a model for thermodynamic properties of the uni-univalent electrolytic solutions
based on a linear relation between a dimensionless-thermodynamic potential constructed for solvent
and a newly defined probability-distribution function of water molecules around the hydrated central
ion. The model allows quantitative reproduction of the osmotic coefficients for the uni-univalent
electrolytic solutions, especially some hydroxides of alkali metals and monoacids such as NaOH,
KOH, LiOH, HF, HCl, HBr, HI, HNO3 and H(HSO4), within experimental accuracy. A comparison is
made of the results of the presented model with the Pitzer's equation. This paper also introduces an
alternative approach for the probability-distribution function, which makes the model be able to extend
to the single electrolyte solutions with various valent types.

Author(s) Details

Zheng Fang
Chemistry and Chemical Engineering College, Central South University, Changsha 410083, P.R. China

View Book :- http://bp.bookpi.org/index.php/bpi/catalog/book/217