Cation transport in gaseous nitrogen: density and temperature effects

The density-normalized mobility of nμ of cations in nitrogen gas at densities up to n c  = 6.7 × 10 27  molecules/m 3 increases with temperature. At n ≤ 5.7 × 10 25  molecules/m 3 and T > 250 K, the dominating ion is N 4 + . At lower temperatures and higher densities, relatively loosely bound clu...

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Bibliographic Details
Published in:Canadian journal of chemistry 1986-04, Vol.64 (4), p.777-779
Main Authors: Wada, Toshinori, Gee, Norman, Freeman, Gordon R
Format: Article
Language:English
Subjects:
Exact sciences and technology
Kinetic and transport theory of gases
Physics
Physics of gases
Physics of gases, plasmas and electric discharges
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Summary:The density-normalized mobility of nμ of cations in nitrogen gas at densities up to n c  = 6.7 × 10 27  molecules/m 3 increases with temperature. At n ≤ 5.7 × 10 25  molecules/m 3 and T > 250 K, the dominating ion is N 4 + . At lower temperatures and higher densities, relatively loosely bound clusters N 4 + (N 2 ), N 4 + (N 2 ) 2 , ... form. Momentum transfer cross sections for N 4 + -N 2 are governed at low energies by the polarization potential, and at high energies by the hard body potential. The cross section for N 2 + -N 2 at high energies is larger than that for N 4 + -N 2 .
ISSN:0008-4042
1480-3291
DOI:10.1139/v86-126