The landau-placzek ratio for multicomponent fluids

H. N. W. Lekkerkerker Faculté des Sciences Université Libre de Bruxelles, 1050, Brussels, Belgium; NATO Science Fellow, 1971-1972

W. G. Laidlaw Faculté des Sciences Université Libre de Bruxelles, 1050, Brussels, Belgium; Chemistry Department, University of Calgary, Calgary, Alberta, Canada

Abstract

Under the assumption that the coupling between the sound modes and modes associated with heat and mass diffusion can be neglected, an expression for the Landau-Placzek ratio for multicomponent fluids is derived using thermodynamic fluctuation theory. Applications of the general formula to ternary systems are discussed briefly

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The landau-placzek ratio for multicomponent fluids

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