Accession Number:

AD0827591

Title:

THERMODYNAMIC PROPERTIES OF ROCKET COMBUSTION PRODUCTS.

Descriptive Note:

Quarterly technical rept. no. 1, 15 Oct 67-15 Jan 68,

Corporate Author:

PHILCO-FORD CORP NEWPORT BEACH CA AERONUTRONIC DIV

Personal Author(s):

Report Date:

1968-02-01

Pagination or Media Count:

23.0

Abstract:

Mass spectrometric studies of appropriate species produced in the H2 - BeO system under Knudsen conditions were carried out at temperatures up to 2485C using rhenium cell components. Equilibrium constants were evaluated from parent-ion intensities derived from gaseous species involved in the following reactions BeOg OHg BeOHg Og Be2Og OHg BeOHg BeOg BeOc Hg BeOHg Be2Og Hg BeOHg Beg. Third law calculations based on these constants, respectively, from reactions 1-4 gave -24.5 plus or minus 8, -32.5 plus or minus 16, -10 plus or minus 16 and -25.5 plus or minus 20 kcalmole for the heat of formation of BeOHg. A weighted average of -23.6 kcalmole is indicated, and the uncertainty is estimated to be plus or minus 6 kcalmole. Examination of the mass spectrum for vapor species having the composition BeOn.H2O, where n 1 through 5, was conducted. Detectable quantities of such species were not found to be present in the H2-BeO system. Author

Subject Categories:

  • Atomic and Molecular Physics and Spectroscopy
  • Combustion and Ignition

Distribution Statement:

APPROVED FOR PUBLIC RELEASE