DURATION OF THE SLOW NO DECOMPOSITION REGIME BEHIND SHOCK WAVES AROUND 3000 DEGREE K AND ITS RELATION TO THE RATE COEFFICIENT OF THE EXCHANGE PATH NO + O YIELDS N + O2
Abstract
An analysis of the chemical mechanisms governing the first and slow NO decomposition regime behind shock waves around 3000 K is provided. The duration of this regime is essentially inversely proportional to the rate coefficient k6 which governs the exchange path NO + O yields N + O2 and is rather insensitive to changes of additional rate coefficients entering the expression. Comparison of calculated values for the time duration based upon a value k6 equals 2.03 x 10 to the 10th power 1/T2 x exp (-38100/RT) cc/mole/sec with experimental shock tube results shows agreement within 50% for temperatures between 2250 and 3450 K. This result implies the validity of the pre-exponential temperature dependency factor 1/T2 as derived from collision theory for the high temperature extrapolation of the value of k6 determined by previous investigations around 500 K. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1961
- Accession Number
- AD0269383
Entities
People
- C.b. Ludwig
- K.g.p. Sulzmann
Organizations
- General Dynamics