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The formation of O₂(a¹Δg̳) by O-atom recombination Ali, Ayoub Azam
Abstract
The formation of O₂(a) by the recombination of o-atoms was studied in a discharge-flow system. The rate of formation of O₂(a) by the homogeneous recombination of O-atoms in the absence of O₂ was found to be second-order in [O] and first-order in [M]. When O₂ was added the rate of formation increased linearly with increasing [O₂]. The following mechanism was presented as being the simplest which is consistent with the data: [See Thesis for Equations] where, "f" represents the fractional yield of the specified O₂ product in the reactions, and M is mainly N₂. Analysis of the experimental data in terms of this mechanism gave the following results: [See Thesis for Equations] This mechanism is consistent with the O₂ (a) nightglow and with the experimental data when the following conditions are satisfied: a) k₂/k₃ = 0.12 b) f₃/f₂ = 8.5 c) f₁/f₃ = 0.6 The yield of O₂(a) by O-atom recombination on glass wool, with a surface recombination coefficient of 6(+/-1)x10⁻⁵, was found to be 0.08(+/-0.02).
Item Metadata
Title |
The formation of O₂(a¹Δg̳) by O-atom recombination
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
1986
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Description |
The formation of O₂(a) by the recombination of o-atoms was studied in a discharge-flow system. The rate of formation of O₂(a) by the homogeneous recombination of O-atoms in the absence of O₂ was found to be second-order in [O] and first-order in [M]. When O₂ was added the rate of formation increased linearly with increasing [O₂]. The following mechanism was presented as being the simplest which is consistent with the data:
[See Thesis for Equations]
where, "f" represents the fractional yield of the specified O₂ product in the reactions, and M is mainly N₂. Analysis of the experimental data in terms of this mechanism gave the following results: [See Thesis for Equations]
This mechanism is consistent with the O₂ (a) nightglow and with the experimental data when the following conditions are satisfied:
a) k₂/k₃ = 0.12
b) f₃/f₂ = 8.5
c) f₁/f₃ = 0.6
The yield of O₂(a) by O-atom recombination on glass wool, with a surface recombination coefficient of 6(+/-1)x10⁻⁵, was found to be 0.08(+/-0.02).
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Genre | |
Type | |
Language |
eng
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Date Available |
2010-06-14
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0060514
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.