Thermodynamics of Redox and Solubility Equilibria Based on Hydration and Partial Dissociation of Electrolytes

Authors: Raji Heyrovska

Thermodynamic treatments of properties of strong electrolytes in aqueous solutions based on the idea of complete dissociation and activity coefficients became too complicated to be meaningful. Therefore, on systematically re-investigating the existing data, it became evident that the earlier ideas of partial dissociation and hydration were correct. The degrees of dissociation and hydration numbers evaluated from vapor pressures or osmotic coefficients could explain many thermodynamic properties quantitatively (from zero to saturation for electrolytes like NaCl). This paper presents simple thermodynamic relations for redox and solubility equilibria in terms of ionic molalities and hydration. Lewis and Randall’s results for a classical electrochemical cell have been used for demonstrating the new approach.

Comments: 19 pages, 2 figures

Download: PDF

Submission history

[v1] 2017-10-29 10:35:56

Unique-IP document downloads: 111 times is a pre-print repository rather than a journal. Articles hosted may not yet have been verified by peer-review and should be treated as preliminary. In particular, anything that appears to include financial or legal advice or proposed medical treatments should be treated with due caution. will not be responsible for any consequences of actions that result from any form of use of any documents on this website.

Add your own feedback and questions here:
You are equally welcome to be positive or negative about any paper but please be polite. If you are being critical you must mention at least one specific error, otherwise your comment will be deleted as unhelpful.

comments powered by Disqus