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The Influence of Gas-Gas Interactions on the Langmuir Constants for Some Natural Gas Hydrates (1994)

KVAMME, B. ; LUND, A.

Oxford, UK : Blackwell Publishing Ltd

Annals of the New York Academy of Sciences 715 (1994), S. 0

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ISSN: 1749-6632

Source: Blackwell Publishing Journal Backfiles 1879-2005

Topics: Natural Sciences in General

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1111/j.1749-6632.1994.tb38882.x

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Interaction-site representation of polar mixtures and electrolyte solutions (1995)

Kvamme, B.

Springer

International journal of thermophysics 16 (1995), S. 743-750

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ISSN: 1572-9567

Keywords: interaction site ; RISM equation ; mixtures ; thermodynamics

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract In this work we present an interaction-site theory for mixture electrolyte solutions. The theory is semi theoretically adjusted for dielectrical properties. The theory preserves the correct asymptotic limits of the dielectric constant when the solution approaches the limit of any of its pure component. In the intermediate concentration range it interpolates the dielectric constants according to a quadratic mixing rule in relative dipole densities. For the simplified interaction-site models applied here, the excess energies of water/methanol at 293.15 K and experimentally measured densities are in fair agreement with experimental values. The estimated average number of hydrogen bonds for a mole fraction of water equal to 0.75 also compares well with published simulations. Estimated energies with and without the dielectric correction indicate that the dielectric constant may have a significant impact on the energy for this molecule. Excess energies for mixtures of water and ethanol are estimated to be too low.