Accession Number:

AD0642300

Title:

SHOCK TUBES STUDY OF THE DISSOCIATION OF CARBON DIOXIDE.

Descriptive Note:

Technical rept.,

Corporate Author:

OHIO STATE UNIV COLUMBUS AERONAUTICAL AND ASTRONAUTICAL RESEARCH LABS

Report Date:

1966-06-01

Pagination or Media Count:

29.0

Abstract:

The rate of dissociation of carbon dioxide in an excess of argon or nitrogen has been measured in the temperature range 3300K - 5000K. A shock tube was used to heat the gas mixture which contained from 1 to 10 carbon dioxide. It is shown that the decrease in temperature and the increase in density due to the endothermic dissociation must be considered to obtain reliable results. The total concentration of the gas mixture was varied from 0.000011 to 0.00000486 molescc. The rate constants were determined to be k1,A 7.11 x 10 to the 11th power T to the 12 power exp-84,500RT ccmole sec when argon was used as the diluent and k1,N2 5.33 x 10 to the 11th power T to the 12 power exp-79,600RT ccmole sec when nitrogen was used as the diluent. The probable dissociation mechanism also is discussed. Author

Subject Categories:

  • Radiation and Nuclear Chemistry
  • Spacecraft Trajectories and Reentry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE