Thermal Diffusion Columns and Intermolecular Potential. III. The Noble Gases Ar and Xe

1971 ◽  
Vol 55 (1) ◽  
pp. 387-393 ◽  
Author(s):  
J. C. Yarza ◽  
M. A. Hidalgo ◽  
D. González Alvarez ◽  
J. M. Savirón
Keyword(s):  
Thermal Diffusion ◽  
Noble Gases ◽  
Intermolecular Potential

Thermal Diffusion Columns and Intermolecular Potential. II The Noble Gases Ne, Ar, Kr, and Xe

1971 ◽  
Vol 54 (7) ◽  
pp. 3105-3111 ◽  
Author(s):  
M. A. Hidalgo ◽  
J. C. Yarza ◽  
D. González Alvarez ◽  
J. M. Savirón
Keyword(s):  
Thermal Diffusion ◽  
Noble Gases ◽  
Intermolecular Potential

Thermal‐Diffusion Columns and Intermolecular Potential. I. The Noble Gases Ne, Ar, Kr, and Xe

1969 ◽  
Vol 50 (9) ◽  
pp. 3936-3941 ◽  
Author(s):  
D. González Alvarez ◽  
J. M. Savirón ◽  
J. C. Yarza
Keyword(s):  
Thermal Diffusion ◽  
Noble Gases ◽  
Intermolecular Potential

Isotopic Thermal Diffusion Factors for Helium and Neon at Low Temperatures

1963 ◽  
Vol 18 (2) ◽  
pp. 242-245 ◽  
Author(s):  
W. W. Watson ◽  
A. J. Howard ◽  
N. E. Miller ◽  
R. M. Shiffrin
Keyword(s):  
Thermal Diffusion ◽  
Low Temperatures ◽  
Quantum Corrections ◽  
Intermolecular Potential ◽  
De Vries ◽  
Lower Temperature ◽  
Improved Accuracy ◽  
Good Agreement

With an all-metal “swing separator” having unique features, thermal diffusion factors αT for He3/He4 and Ne20Ne22 have been measured with improved accuracy down to average gas temperatures T̅=136°K. For helium αT is 0.0696 ± 0.0010 at 136°K, dropping gradually to 0.0651 ±0.0010 at 313°K. These data, plus measurements by Van der Valk and de Vries at somewhat higher temperatures, agree best with values predicted by an exp-six intermolecular potential with ε/k=9.16 and α=12.7. We are extending these helium measurements down to T=4°K for the lower temperature, to detect if possible quantum corrections to the intermolecular potential. For neon αT increases from 0.0166 ± 0.0010 at 136°K to 0.0233 ± 0.0020 at 310°K, considerably higher than our previously reported values. These T. D. factors for neon are in good agreement with values calculated from an exp-six potential with ε/k = 46.0 ± 0.6 and α=13.

Transport coefficients of isotopic mixtures of noble gases based on ab initio potentials

2021 ◽  
Author(s):  
Felix Sharipov ◽  
Victor Juan Benites
Keyword(s):  
Thermal Conductivity ◽  
Ab Initio ◽  
Thermal Diffusion ◽  
Noble Gases ◽  
Transport Coefficients ◽  
Isotopic Compositions ◽  
Ab Initio Potentials

The transport coefficients such as viscosity, thermal conductivity, diffusion and thermal diffusion of neon, argon, krypton, and xenon taking into consideration their real isotopic compositions are computed for a wide...

Thermal diffusion of Br2and Cl2in the noble gases

1974 ◽  
Vol 60 (4) ◽  
pp. 1624-1627 ◽  
Author(s):  
J. Maya ◽  
P. Davidovits
Keyword(s):  
Thermal Diffusion ◽  
Noble Gases

Effect of gravity and intermolecular potential on 3He–4He separative performances of ‘cryogenic-wall’ thermal diffusion column

1998 ◽  
Vol 39-40 ◽  
pp. 1015-1020
Author(s):  
Hiroshi Yamakawa ◽  
Akira Segi ◽  
Noboru Kobayashi ◽  
Takayuki Matsunaga ◽  
Youichi Enokida ◽  
...  
Keyword(s):  
Thermal Diffusion ◽  
Intermolecular Potential ◽  
Diffusion Column
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