Atom Formation Rates behind Shock Waves in Oxygen

• W. S. Watt

  Cornell Aeronautical Laboratory, Inc., Buffalo, New York 14221

• A. L. Myerson

  Cornell Aeronautical Laboratory, Inc., Buffalo, New York 14221

抄録

Atomic absorption spectrophotometry has been used to monitor the rate of oxygen atom formation behind shock waves in oxygen–argon mixtures. These observations were made by observing the time history of absorption at the oxygen atom triplet near 1300 Å. The atomic absorption coefficients were determined experimentally in the shock tube. These observations lead to an oxygen–argon dissociation rate given by kO2 − Ar = 1.85(± 14%) × 1011T0.5exp(− 95 700 / RT) cm3mole−1·sec−1 over the temperature range 2850°–5550°K. In addition this technique is shown to provide a powerful method for examining the vibration–dissociation coupling region. Measurements of the induction time for a steady-state atom formation rate to be established were obtained in the temperature range 2850°–5000°K. These measurements are compared with previously published experimental and theoretical induction times for dissociation in oxygen–argon mixtures.

収録刊行物

• The Journal of Chemical Physics

  The Journal of Chemical Physics 51 (4), 1638-1643, 1969-08-15

  AIP Publishing

キーワード

• Physical and Theoretical Chemistry
• General Physics and Astronomy

詳細情報

• CRID: 1361699995592482176
• NII論文ID: 30015695687
• DOI: 10.1063/1.1672225
• ISSN: 10897690
• ISSN: 00219606
• Web Site: https://pubs.aip.org/aip/jcp/article-pdf/51/4/1638/18864276/1638_1_online.pdf
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