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The isotropic temperature-dependent potential describing the binary interactions in gaseous and

L Zarkova and P Pirgov

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The parameters of the temperature-dependent isotropic potentials of binary - and - interactions are obtained from the experimentally measured second virial coefficient B and viscosity of these gases. The parameters of the ground state (equilibrium distance and the potential depth well at , together with the repulsive parameter n and the temperature dependence ) are defined and can be used to calculate any potential-dependent property of the two gases. The measured viscosities of the - and - mixtures at T = 354 K are reproduced within the experimental error using earlier defined potential parameters for .


PACS

51.10.+y Kinetic and transport theory of gases

51.20.+d Viscosity, diffusion, and thermal conductivity

51.30.+i Thermodynamic properties, equations of state

Subjects

Plasma physics

Dates

Issue 19 (14 October 1996)

Received 4 April 1996, in final form 5 June 1996



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