Solvation Thermodynamics

Solvation Thermodynamics PDF Author: Arieh Y. Ben-Naim
Publisher: Springer Science & Business Media
ISBN: 1475765509
Category : Science
Languages : en
Pages : 253

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Book Description
This book deals with a subject that has been studied since the beginning of physical chemistry. Despite the thousands of articles and scores of books devoted to solvation thermodynamics, I feel that some fundamen tal and well-established concepts underlying the traditional approach to this subject are not satisfactory and need revision. The main reason for this need is that solvation thermodynamics has traditionally been treated in the context of classical (macroscopic) ther modynamics alone. However, solvation is inherently a molecular pro cess, dependent upon local rather than macroscopic properties of the system. Therefore, the starting point should be based on statistical mechanical methods. For many years it has been believed that certain thermodynamic quantities, such as the standard free energy (or enthalpy or entropy) of solution, may be used as measures of the corresponding functions of solvation of a given solute in a given solvent. I first challenged this notion in a paper published in 1978 based on analysis at the molecular level. During the past ten years, I have introduced several new quantities which, in my opinion, should replace the conventional measures of solvation thermodynamics. To avoid confusing the new quantities with those referred to conventionally in the literature as standard quantities of solvation, I called these "nonconventional," "generalized," and "local" standard quantities and attempted to point out the advantages of these new quantities over the conventional ones.

Solvation Thermodynamics

Solvation Thermodynamics PDF Author: Arieh Y. Ben-Naim
Publisher: Springer Science & Business Media
ISBN: 1475765509
Category : Science
Languages : en
Pages : 253

Get Book Here

Book Description
This book deals with a subject that has been studied since the beginning of physical chemistry. Despite the thousands of articles and scores of books devoted to solvation thermodynamics, I feel that some fundamen tal and well-established concepts underlying the traditional approach to this subject are not satisfactory and need revision. The main reason for this need is that solvation thermodynamics has traditionally been treated in the context of classical (macroscopic) ther modynamics alone. However, solvation is inherently a molecular pro cess, dependent upon local rather than macroscopic properties of the system. Therefore, the starting point should be based on statistical mechanical methods. For many years it has been believed that certain thermodynamic quantities, such as the standard free energy (or enthalpy or entropy) of solution, may be used as measures of the corresponding functions of solvation of a given solute in a given solvent. I first challenged this notion in a paper published in 1978 based on analysis at the molecular level. During the past ten years, I have introduced several new quantities which, in my opinion, should replace the conventional measures of solvation thermodynamics. To avoid confusing the new quantities with those referred to conventionally in the literature as standard quantities of solvation, I called these "nonconventional," "generalized," and "local" standard quantities and attempted to point out the advantages of these new quantities over the conventional ones.

Thermodynamics of Solvation

Thermodynamics of Solvation PDF Author: Gennadiĭ Alekseevich Krestov
Publisher: Prentice Hall
ISBN: 9780139150425
Category : Science
Languages : en
Pages : 284

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Book Description
Aimed at scientists interested in the structure and dynamics of aqueous electrolyte solutions, this work examines the concept of the chemical nature of solutions. It shows quantitatively in tabulations of thermodynamic data for metal ions and anions the role of solvents as chemical reagents.

Ion Solvation

Ion Solvation PDF Author: Y. Marcus
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 328

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Book Description
Chemical reactions generally take place in solution and often involve ions. The behaviour of ions in solution, manifested through ion solvation, is therefore of prime interest in chemistry. This book considers in depth the phenomenology of ion solvation and the models and interpretations that have been proposed as the physical causes for the observed phenomena. It contains a thorough discussion of the statistical thermodynamic background of the solvation process from which a discussion of the actual thermodynamics is developed. This, in turn, serves as a background to the structural and kinetic features of ion solvation.

Molecular Theory of Solvation

Molecular Theory of Solvation PDF Author: F. Hirata
Publisher: Springer Science & Business Media
ISBN: 1402025904
Category : Science
Languages : en
Pages : 366

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Book Description
Molecular Theory of Solvation presents the recent progress in the statistical mechanics of molecular liquids applied to the most intriguing problems in chemistry today, including chemical reactions, conformational stability of biomolecules, ion hydration, and electrode-solution interface. The continuum model of "solvation" has played a dominant role in describing chemical processes in solution during the last century. This book discards and replaces it completely with molecular theory taking proper account of chemical specificity of solvent. The main machinery employed here is the reference-interaction-site-model (RISM) theory, which is combined with other tools in theoretical chemistry and physics: the ab initio and density functional theories in quantum chemistry, the generalized Langevin theory, and the molecular simulation techniques. This book will be of benefit to graduate students and industrial scientists who are struggling to find a better way of accounting and/or predicting "solvation" properties.

Aqueous Solutions of Simple Electrolytes

Aqueous Solutions of Simple Electrolytes PDF Author: Felix Franks
Publisher: Springer Science & Business Media
ISBN: 1468429558
Category : Science
Languages : en
Pages : 482

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Book Description
The chapters making up this volume had originally been planned to form part of a single volume covering solid hydrates and aqueous solutions of simple molecules and ions. However, during the preparation of the manu scripts it became apparent that such a volume would turn out to be very unwieldy and I reluctantly decided to recommend the publication of sepa rate volumes. The most sensible way of dividing the subject matter seemed to lie in the separation of simple ionic solutions. The emphasis in the present volume is placed on ion-solvent effects, since a number of excellent texts cover the more general aspects of electrolyte solutions, based on the classical theories of Debye, Huckel, On sager, and Fuoss. It is interesting to speculate as to when a theory becomes "classical." Perhaps this occurs when it has become well known, well liked, and much adapted. The above-mentioned theories of ionic equilibria and transport certainly fulfill these criteria. There comes a time when the refinements and modifications can no longer be related to physical significance and can no longer hide the fact that certain fundamental assumptions made in the development of the theory are untenable, especially in the light of information obtained from the application of sophisticated molecular and thermodynamic techniques.

Molecular Basics of Liquids and Liquid-Based Materials

Molecular Basics of Liquids and Liquid-Based Materials PDF Author: Katsura Nishiyama
Publisher: Springer Nature
ISBN: 981165395X
Category : Science
Languages : en
Pages : 469

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Book Description
This book sheds light on the molecular aspects of liquids and liquid-based materials such as organic or inorganic liquids, ionic liquids, proteins, biomaterials, and soft materials including gels. The reader discovers how the molecular basics of such systems are connected with their properties, dynamics, and functions. Once the use and application of liquids and liquid-based materials are understood, the book becomes a source of the latest, detailed knowledge of their structures, dynamics, and functions emerging from molecularity. The systems discussed in the book have structural dimensions varying from nanometers to millimeters, thus the precise estimation of structures and dynamics from experimental, theoretical, and simulation methods is of crucial importance. Outlines of the practical knowledge needed in research and development are helpfully included in the book.

COSMO-RS

COSMO-RS PDF Author: Andreas Klamt
Publisher: Elsevier
ISBN: 0080455530
Category : Technology & Engineering
Languages : en
Pages : 247

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Book Description
The COSMO-RS technique is a novel method for predicting the thermodynamic properties of pure and mixed fluids which are important in many areas, ranging from chemical engineering to drug design. COSMO-RS, From Quantum Chemistry to Fluid Phase Thermodynamics and Drug Design is about this novel technology, which has recently proven to be the most reliable and efficient tool for the prediction of vapour-liquid equilibria. In contrast to group contribution methods, which depend on an extremely large number of experimental data, COSMO-RS calculates the thermodynamic data from molecular surface polarity distributions, resulting from quantum chemical calculations of the individual compounds in the mixture. In this book, the author cleverly combines a vivid overview of the partly demanding theoretical steps with a deeper analysis of their scientific background and justification. Aimed at theoretical chemists, computational chemists, physical chemists, chemical engineers, thermodynamicists as well as students,academic and industrial experts, COSMO-RS, From Quantum Chemistry to Fluid Phase Thermodynamics and Drug Design provides a novel viewpoint to anyone looking to gain more insight into the theory and potential of the unique method, COSMO-RS. - The only book currently available on COSMO-RS technique - Provides a novel viewpoint for the scientific understanding and for the practical quantitative treatment of fluid phase thermodynamics - Includes illustrative examples of the COSMOtherm program

Molecular Thermodynamics Of Electrolyte Solutions (Second Edition)

Molecular Thermodynamics Of Electrolyte Solutions (Second Edition) PDF Author: Lloyd L Lee
Publisher: World Scientific
ISBN: 9811233012
Category : Technology & Engineering
Languages : en
Pages : 295

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Book Description
Electrolytes and salt solutions are ubiquitous in chemical industry, biology and nature. This unique compendium introduces the elements of the solution properties of ionic mixtures. In addition, it also serves as a bridge to the modern researches into the molecular aspects of uniform and non-uniform charged systems. Notable subjects include the Debye-Hückel limit, Pitzer's formulation, Setchenov salting-out, and McMillan-Mayer scale. Two new chapters on industrial applications — natural gas treating, and absorption refrigeration, are added to make the book current and relevant.This textbook is eminently suitable for undergraduate and graduate students. For practicing engineers without a background in salt solutions, this introductory volume can also be used as a self-study.

Ions in Solution and their Solvation

Ions in Solution and their Solvation PDF Author: Yizhak Marcus
Publisher: John Wiley & Sons
ISBN: 1118889142
Category : Science
Languages : en
Pages : 308

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Book Description
The book starts with an exposition of the relevant properties of ions and continues with a description of their solvation in the gas phase. The book contains a large amount of factual information in the form of extensive tables of critically examined data and illustrations of the points made throughout. It covers: the relevant properties of prospective liquid solvents for the ions the process of the transfer of ions from the gas phase into a liquid where they are solvated various aspects of the solutions of the ions, such as structural and transport ones and the effects of the ions on the solvent dynamics and structure what happens in cases where the solvent is a mixture selective solvation takes place applications of the concepts expounded previously in fields such as electrochemistry, hydrometallurgy, separation chemistry, biophysics, and synthetic methods

Solvation Effects on Molecules and Biomolecules

Solvation Effects on Molecules and Biomolecules PDF Author: Sylvio Canuto
Publisher: Springer Science & Business Media
ISBN: 1402082703
Category : Science
Languages : en
Pages : 536

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Book Description
This volume is an interdisciplinary treatise on the theoretical approach to solvation problems. It describes the essential details of the theoretical methods and places them into the context of modern applications, and hence is of broad interest to theoreticians and experimentalists. The assembly of these modern methods and applications into one volume is a unique contribution to date and gives a broad and ample description of the field in its present stage of development.