Перегляд за Автор "Malomuzh, Nikolay P."

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  • Ескіз
    Документ
    Nature of the kinematic shear viscosity for low-molecular liquids with averaged potential of Lennard-Jones type
    (2016) Makhlaichuk, Pavlo V.; Makhlaichuk, Victor N.; Malomuzh, Nikolay P.
    The main attention is focused on the kinematic shear viscosity of argon, nitrogen, benzene and nitrobenzene which have different molecular shapes and sizes and intermolecular interactions, as well. We show that all these liquids demonstrate the argon-like behavior of their kinematic shear viscosities and belong to the same similarity class. Additionally, we show that the kinematic shear viscosity of argon is mainly determined by the packing factor which is characteristic for the van der Waals equation of state. We suggest the explicit formula for the shear viscosity. We found out that the similarity in the behavior of the shear viscosities of low-molecular liquids is connected with the identical structure of their averaged interparticle potentials for enumerated and other low-molecular liquids. This circumstance is a consequence of rotational motion of molecules in liquids.
  • Ескіз
    Документ
    The Role of Two-Particle Effects in the Behavior of Refraction of Single-Component Liquids and Two-Component Solutions
    (Pleiades Publishing, Inc., 2016) Hotsulskyi, Volodymyr Ya.; Malomuzh, Nikolay P.; Chechko, V. E.
    The role of irreducible two-particle contributions to the refraction properties of liquids and solutions has been studied. Two-particle contributions to the polarization vector of the system are calculated by electrostatics methods, which can be explained by weak deformations and overlaps of the electron shells of atoms and molecules. It is shown that, when the two-particle effects are taken into account, the constant of molecular refraction for binary solutions becomes a weakly nonadditive function of the constant of refraction of the components. It is shown by the example of aqueous solutions of ethanol and methanol that our values of the refractive indices and constants of refraction of the solutions are in good agreement with the experimental data.