Accession Number:

AD0423511

Title:

SPECIFIC HEAT OF NITROGEN AT HIGH TEMPERATURE,

Descriptive Note:

Corporate Author:

GENERAL DYNAMICS/FORT WORTH TEX

Personal Author(s):

• Brigman,George H.

Report Date:

1963-11-04

Pagination or Media Count:

29.0

Abstract:

The specific heat at constant volume of gaseous nitrogen is calculated by semi-quantum-statistical methods for temperatures up to 20,000 K. The summations required for the partition functions and specific heat calculations were performed on an IBM 704 calculator by using spectroscopic data to make a fairly exact series, instead of using either a short series approximation or an approximate integral. The effect of molecular clustering is neglected in this study. Emphasis is placed on the effects of dissociation, ionization, and velocity adjustment on the specific heat. Consequently, the range between 3,000 K and 20,000 K is examined in detail. Author

Descriptors:

• *HIGH TEMPERATURE
• SPECIFIC HEAT
• NITROGEN
• DIGITAL COMPUTERS
• SPECTROSCOPY
• INTEGRALS
• TEMPERATURE
• DISSOCIATION
• IONIZATION
• VELOCITY
• ENERGY
• MOLECULAR PROPERTIES
• VIBRATION
• ROTATION
• FUNCTIONS(MATHEMATICS)
• CONFIGURATIONS
• ELECTRONS

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE