منابع مشابه
Charge oscillations in Debye-Hückel theory
– The recent generalized Debye-Hückel (GDH) theory is applied to the calculation of the charge-charge correlation function, GZZ(r). The resulting expression satisfies both i) the charge neutrality condition and ii) the Stillinger-Lovett second-moment condition for all T and ρN , the overall ion density, and iii) exhibits charge oscillations for densities above a “Kirkwood line” in the (ρN , T )...
متن کاملDensity fluctuations in an electrolyte from generalized Debye-Hückel theory.
Near-critical thermodynamics in the hard-sphere (1, 1) electrolyte is well described, at a classical level, by Debye-Hückel (DH) theory with s1, 2d ion pairing and dipolar-pair-ionic-fluid coupling. But DH-based theories do not address density fluctuations. Here density correlations are obtained by functional differentiation of DH theory generalized to nonuniform densities of various species. T...
متن کاملA molecular Debye-Hückel theory and its applications to electrolyte solutions: The size asymmetric case.
A molecular Debye-Hückel theory for electrolyte solutions with size asymmetry is developed, where the dielectric response of an electrolyte solution is described by a linear combination of Debye-Hückel-like response modes. As the size asymmetry of an electrolyte solution leads to a charge imbalanced border zone around a solute, the dielectric response to the solute is characterized by two types...
متن کاملAsymmetric primitive-model electrolytes: Debye-Hückel theory, criticality, and energy bounds.
Debye-Hückel (DH) theory is extended to treat two-component size- and charge-asymmetric primitive models, focusing primarily on the 1:1 additive hard-sphere electrolyte with, say, negative ion diameters a(--) larger than the positive ion diameters a(++). The treatment highlights the crucial importance of the charge-unbalanced "border zones" around each ion into which other ions of only one spec...
متن کاملThermodynamic consistency of energy and virial routes: an exact proof within the linearized Debye-Hückel theory.
The linearized Debye-Hückel theory for liquid state is shown to provide thermodynamically consistent virial and energy routes for any potential and for any dimensionality. The importance of this result for bounded potentials is discussed.
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ژورنال
عنوان ژورنال: Europhysics Letters (EPL)
سال: 1997
ISSN: 0295-5075,1286-4854
DOI: 10.1209/epl/i1997-00402-x