Journal ArticleDOI
Solute‐Solute Interactions in Aqueous Solutions
TLDR
In this article, the authors interpreted solvent-solute interactions in aqueous solutions of nonelectrolytes using both lattice and distribution function theories of the dissolved state.Abstract:
Solute‐solute interactions in aqueous solutions of nonelectrolytes are interpreted using both lattice and distribution function theories of the dissolved state. Experimental activity data of high precision can be obtained from the literature for aqueous solutions of many nonelectrolytes. If the logarithm of the solvent activity coefficient (γ1) is expressed as a power series in the mole fraction of the solute (x2), lnγ1 = Bx22 + Cx23 + ···, then the coefficients B and C can be determined analytically from the experimental measurements. Values of B were obtained for 52 aqueous mixtures; values of C were obtained for 39 of these mixtures. The solutes considered include aliphatic alcohols, amines, amides, ketones, fatty acids, amino acids, and sugars. In some cases, experimental data were available from which the temperature dependence of the quantities B and C could also be determined. The effect of solute size on the coefficients B and C was investigated using the lattice theories of Flory, Huggins, and Gu...read more
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Journal ArticleDOI
Rheological behaviour of some saccharides in aqueous potassium chloride solutions over temperature range (288.15 to 318.15) K
TL;DR: In this paper, the Gibbs free energies of activation and related thermodynamic parameters of activation of viscous flow have been determined employing Feakin's transition-state theory for the transfer of various saccharides/methylglycosides from water to aqueous potassium chloride solutions.
Journal ArticleDOI
Enthalpies of β-Alanine Dissolution in Some Water + Organic Mixtures at 298.15 K
TL;DR: In this paper, the enthalpies of β-alanine in aqueous solutions of acetonitrile, 1,4-dioxane, acetone, formamide, N-methylformamide, DMFA, N,N-dimethylformamide (DMFA), DMA, and dimethyl sulfoxide (DMSO) were determined by calorimetric method as a function of organic solvent concentration at 298.15 K.
Journal ArticleDOI
Enthalpic interaction coefficients of amides dissolved in N,N-dimethylformamide
Michael Bloemendal,Gus Somsen +1 more
TL;DR: In this article, the results of the measurement of enthalpies of dilution of propionamide, butyramide, pentanamide, hexanamide and hexanamides in N,N-dimethylformamide as solvent have been analyzed in terms of the McMillan-Mayer theory.
Journal ArticleDOI
Deep hydration: Poly(ethylene glycol) Mw 2000–8000 Da probed by vibrational spectrometry and small-angle neutron scattering and assignment of ΔG° to individual water layers
TL;DR: In this paper, small-angle neutron scattering (SANS) was used to analyze poly(ethylene glycol) (PEG) solutions in aqueous solutions and showed that the structures of the PEGs in the molecular mass range 2000 Da to 8000 Da are paired in the solution, and the separation distance decreases with increasing PEG concentration.
Journal ArticleDOI
Freezing temperatures and densities of solutions of some hydrocarbons and sodium oleate inN-methylacetamide. Evidence for a solvophobic interaction
Quentin D. Craft,Robert H. Wood +1 more
TL;DR: The freezing temperatures and densities of solutions of octane, nonane, decane, 3,3-diethylpentane, and sodium oleate in N-methylacetamide (NMA) have been measured as mentioned in this paper.
References
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Book
Molecular theory of gases and liquids
TL;DR: Molecular theory of gases and liquids as mentioned in this paper, molecular theory of gas and liquids, Molecular theory of liquid and gas, molecular theories of gases, and liquid theory of liquids, مرکز
Book ChapterDOI
Some factors in the interpretation of protein denaturation.
TL;DR: The chapter reviews that the denaturation is a process in which the spatial arrangement of the polypeptide chains within the molecule is changed from that typical of the native protein to a more disordered arrangement.
Journal ArticleDOI
Thermodynamics of High Polymer Solutions
TL;DR: In this paper, a statistical treatment of high polymer solutions has been carried out on the basis of an idealized model, originally proposed by Meyer, which is analogous to the one ordinarily assumed in the derivation of the ''ideal'' solution laws for molecules of equal size.
Journal ArticleDOI
Free Volume and Entropy in Condensed Systems III. Entropy in Binary Liquid Mixtures; Partial Molal Entropy in Dilute Solutions; Structure and Thermodynamics in Aqueous Electrolytes
Henry S. Frank,Marjorie W. Evans +1 more
TL;DR: The first and second papers in this series, which make it possible to interpret entropy data in terms of a physical picture, are applied to binary solutions, and equations are derived relating energy and volume changes when a solution is formed to the entropy change for the process as discussed by the authors.
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