Excess volume of electrolytes in the mean spherical approximation
An expression for the excess partial molar volume of electrolyte solutions was derived in the framework of the mean spherical approximation (MSA), This integral theory, an extension of the Debye - Hückel theory, includes the effect of the ion size in the radial ion - ion distribution function, and i...
Guardado en:
| Autor principal: | |
|---|---|
| Publicado: |
2009
|
| Materias: | |
| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219568_v54_n2_p548_Corti http://hdl.handle.net/20.500.12110/paper_00219568_v54_n2_p548_Corti |
| Aporte de: |
| id |
paper:paper_00219568_v54_n2_p548_Corti |
|---|---|
| record_format |
dspace |
| spelling |
paper:paper_00219568_v54_n2_p548_Corti2023-06-08T14:43:50Z Excess volume of electrolytes in the mean spherical approximation Corti, Horacio Roberto Concentration regions Electrolyte solutions Excess partial molar volumes Excess volumes Excluded volumes Experimental datum Integral theories Ion associations Ion sizes Mean spherical approximations Nacl aqueous solutions Pressure and temperatures Reference systems Distribution functions Ions Metallic glass Sodium chloride Thermodynamic properties Electrolytes An expression for the excess partial molar volume of electrolyte solutions was derived in the framework of the mean spherical approximation (MSA), This integral theory, an extension of the Debye - Hückel theory, includes the effect of the ion size in the radial ion - ion distribution function, and it allows the description of excess thermodynamic properties of electrolytes over a wide range of concentration. The general pressure and temperature dependence of the excess volume predicted by the model were analyzed for model electrolytes, and the results for NaCl aqueous solutions at temperatures up to 300 °C were compared with experimental data over a wide range of concentrations (up to 4 mol·kg-1). Crystallographic and adjustable ion diameters were used in the calculations, allowing reasonable predictions of the NaCl(aq) excess volume over different concentration regions. The effect of ion association, excluded volume, and reference system conversion were also analyzed. © 2009 American Chemical Society. Fil:Corti, H.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219568_v54_n2_p548_Corti http://hdl.handle.net/20.500.12110/paper_00219568_v54_n2_p548_Corti |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Concentration regions Electrolyte solutions Excess partial molar volumes Excess volumes Excluded volumes Experimental datum Integral theories Ion associations Ion sizes Mean spherical approximations Nacl aqueous solutions Pressure and temperatures Reference systems Distribution functions Ions Metallic glass Sodium chloride Thermodynamic properties Electrolytes |
| spellingShingle |
Concentration regions Electrolyte solutions Excess partial molar volumes Excess volumes Excluded volumes Experimental datum Integral theories Ion associations Ion sizes Mean spherical approximations Nacl aqueous solutions Pressure and temperatures Reference systems Distribution functions Ions Metallic glass Sodium chloride Thermodynamic properties Electrolytes Corti, Horacio Roberto Excess volume of electrolytes in the mean spherical approximation |
| topic_facet |
Concentration regions Electrolyte solutions Excess partial molar volumes Excess volumes Excluded volumes Experimental datum Integral theories Ion associations Ion sizes Mean spherical approximations Nacl aqueous solutions Pressure and temperatures Reference systems Distribution functions Ions Metallic glass Sodium chloride Thermodynamic properties Electrolytes |
| description |
An expression for the excess partial molar volume of electrolyte solutions was derived in the framework of the mean spherical approximation (MSA), This integral theory, an extension of the Debye - Hückel theory, includes the effect of the ion size in the radial ion - ion distribution function, and it allows the description of excess thermodynamic properties of electrolytes over a wide range of concentration. The general pressure and temperature dependence of the excess volume predicted by the model were analyzed for model electrolytes, and the results for NaCl aqueous solutions at temperatures up to 300 °C were compared with experimental data over a wide range of concentrations (up to 4 mol·kg-1). Crystallographic and adjustable ion diameters were used in the calculations, allowing reasonable predictions of the NaCl(aq) excess volume over different concentration regions. The effect of ion association, excluded volume, and reference system conversion were also analyzed. © 2009 American Chemical Society. |
| author |
Corti, Horacio Roberto |
| author_facet |
Corti, Horacio Roberto |
| author_sort |
Corti, Horacio Roberto |
| title |
Excess volume of electrolytes in the mean spherical approximation |
| title_short |
Excess volume of electrolytes in the mean spherical approximation |
| title_full |
Excess volume of electrolytes in the mean spherical approximation |
| title_fullStr |
Excess volume of electrolytes in the mean spherical approximation |
| title_full_unstemmed |
Excess volume of electrolytes in the mean spherical approximation |
| title_sort |
excess volume of electrolytes in the mean spherical approximation |
| publishDate |
2009 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219568_v54_n2_p548_Corti http://hdl.handle.net/20.500.12110/paper_00219568_v54_n2_p548_Corti |
| work_keys_str_mv |
AT cortihoracioroberto excessvolumeofelectrolytesinthemeansphericalapproximation |
| _version_ |
1768544624334340096 |