Debye Relaxation in Symmetric‐Top—Foreign‐Gas Mixtures; Temperature Dependence of Collision Cross Sections

1966 ◽  
Vol 44 (7) ◽  
pp. 2610-2619 ◽  
Author(s):  
L. Frenkel ◽  
S. J. Kryder ◽  
A. A. Maryott
Keyword(s):  
Temperature Dependence ◽  
Cross Sections ◽  
Gas Mixtures ◽  
Debye Relaxation ◽  
Collision Cross Sections

Die Wärmeleitfähigkeiten von reinem Ortho-und Para-Deuteriumgas und ihren Gemischen bei 18,4, 19,6 und 21,0 K / The Thermal Conductivities of Pure Ortho and Pure Para Deuterium Gas and Their Mixtures at 18.4, 19.6 and 21.0 K

1971 ◽  
Vol 26 (8) ◽  
pp. 1303-1308 ◽  
Author(s):  
W. Uebelhack ◽  
W. Eichenauer ◽  
K. Heinzinger ◽  
A. Klemm
Keyword(s):  
Temperature Dependence ◽  
Cross Sections ◽  
Molar Fraction ◽  
Collision Cross Sections ◽  
Deuterium Gas ◽  
Thermal Conductivities

The results of measurements at three temperatures on gases in the whole concentration range from pure o-D2 to pure p-D2 are presented in the form (γp the molar fraction of p-D2)X/X (rp=0) = 1 - ki yp-.k2 yp2,with ^ = 2 . 1 7 , 2.43, 2.97 - l O " 3 and A:2=2.37, 2.27, 2.24 - l O " 3 for 7 = 18.4, 19.6, 21.0 K respectively. From these coefficients, and making use of the Eucken relation, the ratios of the collision cross sections have been estimated to be Ωpp/Ωoo = 1 + (4.37 ± 0.05) • 10-3,Ωop/Ωoo = 1 + (1-05 ± 0.05) • 1O-3.A temperature dependence of these ratios was not detected

Quantum mechanical calculations of effective collision cross-sections for He-N2interaction

1991 ◽  
Vol 72 (6) ◽  
pp. 1347-1364 ◽  
Author(s):  
Frederick R.W. McCourt ◽  
Velisa Vesovic ◽  
William A. Wakeham ◽  
Alan S. Dickinson ◽  
Merih Mustafa
Keyword(s):  
Cross Sections ◽  
Quantum Mechanical ◽  
Quantum Mechanical Calculations ◽  
Collision Cross Sections ◽  
Effective Collision
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