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Asian Journal of Research in Chemistry
Year : 2016, Volume : 9, Issue : 12
First page : ( 617) Last page : ( 625)
Print ISSN : 0974-4169. Online ISSN : 0974-4150.
Article DOI : 10.5958/0974-4150.2016.00084.5

Viscosity for isotopes of helium with HCB model

Akhouri Binay Prakash1,*, Kaur Sumit2

1Department of Physics, Birsa College, Khunti-835210, Jharkhand (India)

2Department of Physics, Nirmala College, Ranchi-834002, Jharkhand (India)

*Corresponding Author E-mail: binayakhouri@yahoo.in

Online published on 9 March, 2017.

Abstract

The calculation of viscosities for the fluids of Helium isotopes, He3 and He4, has been made by using HCB models. The phase shifts required for its calculation of viscosities have been obtained by numerical integration of the radial wave equation expressed by taking a simple form of Leenard-Jones intermolecular potential specified in terms of the support function (hx) and surface to surface coordinate representation K. For both He3 and He4 the phase shifts resemble the rigid sphere behavior for high collision energies of the two colliding helium molecules of the same species. The cross-sections required for the calculation of viscosities below temperature 5K for the fluids of helium isotopes has also been discussed.

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Keywords

Support function, HCB coordinate system, Phase shifts, Viscosity.

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