Accession Number:

AD0478877

Title:

RESEARCH ON EXPERIMENTAL HEAT OF VAPORIZATION AND ENTHALPY MEASUREMENTS OF OXYGEN-NITROGEN-ARGON MIXTURES.

Descriptive Note:

Quarterly progress rept. no. 6, 1 Jul-30 Sep 65,

Corporate Author:

AIR PRODUCTS AND CHEMICALS INC ALLENTOWN PA RESEARCH AND DEVELOPMENT DEPT

Personal Author(s):

• Wilson, G. M.

Report Date:

1965-10-01

Pagination or Media Count:

22.0

Abstract:

The enthalpy apparatus was modified to permit operation at reduced pressure in the nitrogen boil-off chamber of the calorimeter. A temperature of 125 R is now obtainable compared with 150 R previously obtainable. This increases the number of points which can be measured with liquid nitrogen. The remaining points can be measured in a static calorimeter with liquid helium as the refrigerant. This modification will avoid the safety problems related to operation with liquid hydrogen. Author

Descriptors:

• *HEAT OF VAPORIZATION)
• (*GASES
• (*ENTHALPY
• GASES)
• ARGON
• NITROGEN
• OXYGEN
• MIXTURES
• MEASUREMENT
• EXPERIMENTAL DATA
• CALORIMETERS

Subject Categories:

• Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE