Nonclassical Properties of Molecular Diffusion in Liquids and Dense Gases

Valery Rudyak; A.A. Belkin

doi:10.4028/www.scientific.net/DDF.273-276.560

Paper Titles

Investigation of Homogenization Treatment in Al- Li- Cu- Zr Alloys
p.536

Effect of Antioxidants and Atmosphere on the Phase Formation and Microstructure of In Situ MgO-Al₂O₃ Spinels
p.542

Formation and Decomposition of Sol-Gel Synthesized Aluminum Titanate Nano Powders at the Presence of Fe₂O₃ Additive
p.549

Effect of Colloidal Silica and Nano Boehmite Mixture on Reaction Sintering, Microstructure and Physical Properties of Tialite
p.554

Nonclassical Properties of Molecular Diffusion in Liquids and Dense Gases
p.560

Nanoparticle Friction Force and Effective Viscosity of Nanosuspensions
p.566

Diffusion of Refractory Elements in Ni—X—Y (X, Y: Co, Re, Ru, W) Ternary Alloys
p.572

Diffusion-Evaporation Studies of Binary Mixtures in Capillary Tubes
p.577

Chronoamperometric Determination of Diffusion Coefficients for Borohydride Anions in Sodium Hydroxide Solutions
p.583

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Nonclassical Properties of Molecular Diffusion in Liquids and Dense Gases

Abstract:

The diffusion of molecules in liquids and dense gases is demonstrated to be nonclassical for long time intervals. This means that the time dependence of the mean-square displacement of molecules is nonlinear. This result was obtained by molecular dynamics simulations over a wide range of density of the medium. The problem of plateau values of the diffusion coefficient is discussed. Nonclassical diffusion equations are derived and discussed.