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Evaluation of the Thermodynamic Functions for Aqueous Sodium Chloride

By Clarke, E.

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Book Id: WPLBN0000661472
Format Type: PDF eBook
File Size: 9.02 MB.
Reproduction Date: 2005
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Title: Evaluation of the Thermodynamic Functions for Aqueous Sodium Chloride  
Author: Clarke, E.
Volume:
Language: English
Subject: Technology., Reference materials, Technology and literature
Collections: Techonology eBook Collection
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Colin, E. (n.d.). Evaluation of the Thermodynamic Functions for Aqueous Sodium Chloride. Retrieved from http://hawaiilibrary.net/


Description
Technical Reference Publication

Excerpt
Introduction: Water is the world's most essential and abundant liquid for the stoichiometric mean molal ionic activity coeffiuid. Common salt is the most abundant dissolved electrolyte cient (y) for sodium chloride molality between 0.1 and 6.0maJ in ocean water, and from the seas of antiquity are derived at 25 OC.

Table of Contents
Contents List of Symbols .......................................................... 490 1. Introduction ......................................................... 49 1 1. I. Earller Models and Tabulations .................. 49 1 1.2. Present Objective ........................................ 492 2. Definition of the Equations .................................. 492 2.1. Symbols and General Equations ................. 492 2.2. Composition and Temperature Dependence of Model ...................................................... 2.3. Gibbs Energy Functions ............................. 2.4. Apparent Mold Relative Enthalpy ............. 2.5. Heat Capacity Functions ............................ 2.6. Integral Heat of Dilution .......................... 2.7. Heat of Solution Functions ....................... 2.8. Solubility Equilibrium ................................. 2.9. Parameters in Model ................................... 2.10. Additional Thermodynamic Functions ...... 3. Method of Uata lreatment .................................. 3.1. Preparation of the Input Data .................... 3.2. Weighting the Equations ............................. 3.3. Determination of the Weights ..................... 3.4. Regression Model Parameters .................... 3.5. Partial Leverage of the Data ....................... 3.6. Fit of the Model to the Measurements ........ 4. Comparison of Earlier Tabulations with the Regression Model ................................................. 4.1. Development of the Regression Model ....... 4.2. Osmotic and Activity Coefficient Data @ 1985 by theU. S. Secretary of Commerce on behalf of theunited States. This copyright is assigned to the American Institute of Physics and the American rhemicnl S w i ~ t y Reprints available from Am, see Reprints List at back of issue. 4.3. Apparent Molal Relative Enthalpy and Heat of Dilution Data ................................. 4.4. HULu f Sululiur~D ata ................................. 4.5. Heat Capacity Data .................................... 4.6. Standard Gibbs Energy of Solution ............ 4.7. NBS Tables of Chemical Thermodynamic Properties .................................................... 5. Thermodynamic Property Estimates from the Regression Model ................................................. 5.1. . Auxiliary Properties of Water ..................... 5.2. Property Estimates for Sodium Chloride Brines .......................................................... 6. Conclusion ......................................................... 7. Acknowledgments ................................................ 8. References ............................................................ List of Tables 1. Maximum number of parameters for fitting var- ious types of data ................................................ 2. Input data for aqueous sodium chloride proper- ties ...................................................................... 3. Data sets with unit internal weights ................... 4. Converged internal weighting of data sets ......... 5. Regression model parameters and standard er- rors at 298.15 K ................................................. 6. Data sets ordered by sums of partial leverages .. 7. Influenceofdata typeun parameter sat 298.15 K 8. Fit of Gibbs energy measurements by regression model .................................................................. 0047-2689/85/020489-99/$12.00 489 J. Phys. Chem. Ref. Data, Vol. 14, No. 2, 1985

 

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