The reaction of hydrogen bromide with nitrogen oxide in shock waves.

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概要

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• The reaction of hydrogen bromide with nitrogen oxide in the temperature range 2000–3300 K and in the pressure range 0.7–3.8 atm has been studied behind reflected shock waves by monitoring the IR emission of HBr. For the early stage of the reaction, the rate equation obtained was −d[HBr]/d<I>t</I>=<I>k</I><SUB>overall</SUB>[HBr]<SUP>1±0.3</SUP>[NO]<SUP>0.7±0.2</SUP>[Ar]<SUP>0±0.1</SUP>, where <I>k</I><SUB>overall</SUB>=10<SUP>10.4±0.2</SUP>exp{−(23.2±3.0) kcal/<I>RT</I>} cm<SUP>2.1</SUP> mol<SUP>−0.7</SUP> s<SUP>−1</SUP>. As the initiation step, Reaction 1 was found to be more important than Reaction 2:<BR>HBr+NO→HNO+Br, (1)<BR>HBr+Ar→H+Br+Ar. (2)<BR>The rate constant of Reaction 1 was determined to be <I>k</I><SUB>1</SUB>=10<SUP>12.8</SUP>exp(−30kca⁄<I>RT</I>) cm<SUP>3</SUP> mol<SUP>−1</SUP> s<SUP>−1</SUP>.

• 公益社団法人 日本化学会の論文

著者

• Saito Ko

  Department Of Chemistry Graduate School Of Science Hiroshima University

• Higashihara Tetsuo

  Department of Chemistry, Faculty of Science, Hiroshima University

• Murakami Ichiro

  Department of Chemistry, Faculty of Science, Hiroshima University

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