A Shock Tube Study of the Recombination of Carbon Monoxide and Oxygen Atoms.
Abstract
For some time now this laboratory has been utilizing nitrous oxide as a high temperature source of oxygen atoms. Recently, an independent technique has been used to calibrate the detector system for oxygen atoms. With this calibration factor known, more refined experiments have been performed in which the absolute oxygen atom concentration can be monitored as a function of time. It was found that only slight modifications of earlier rate constant assignments were required to quantitatively explain these new results. In this light it is now felt that the dissociation kinetics of N2O are reasonably well understood. Thus the CO2 production rate in N2O/CO mixtures has been measured in an attempt to determine k sub r. It is shown that small amount of impurities can drastically affect the CO2 production rate. Analysis of this impurity effect has yielded estimates of the actual recombination rate constant between 2100 and 3200 K. The value of k sub r determined in this way is shown to be consistent with the recent measurements of k sub d reported by Wagner, and Kiefer, which yielded normal activation energies for CO2 dissociation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1976
- Accession Number
- ADA032494
Entities
People
- Anthony M. Dean
- Don C. Steiner
Organizations
- Purdue University