A Kinetic theory of intercollisional interference effects in arbitrary gas mixtures

Campbell, Roderick R. A. (1982) A Kinetic theory of intercollisional interference effects in arbitrary gas mixtures. Masters thesis, Memorial University of Newfoundland.

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    Available under License - The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission.
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Abstract

A kinetic theory of intercollisional interference effects in collision-induced translational absorption by arbitrary binary gas mixtures has been developed. Expressions have been derived for the intercollisional dip in which no assumptions about the relative concentration ratios or relative masses of the two constituents have been made. The variation of the halfwidth of the dip with the concentration ratio of the mixture has been obtained. The halfwidths at the infinitely dilute endpoints, nA/nB↓0 and nA/nB↑ °° predicted by this theory are in agreement with previous theoretical results. This theory also shows reasonably good agreement with the experimental data on the line shape as a function of nAnB for various concentration ratios. Our curves provide the correct qualitative behaviour of the line shape. -- In addition, expressions have been developed for intercollisional interference effects in collision-induced translational absorption by mixtures of arbitrary composition. That is, the above theory has been extended to include mixtures in which the number of constituents is arbitrary.

Item Type: Thesis (Masters)
URI: http://research.library.mun.ca/id/eprint/1339
Item ID: 1339
Additional Information: Bibliography : leaves 108-110
Department(s): Science, Faculty of > Physics and Physical Oceanography
Date: 1982
Date Type: Submission
Library of Congress Subject Heading: Collisions (Physics); Absorption spectra; Light absorption

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