Accession Number : AD0661385

Title :   THE CONDENSATION AND SUBLIMATION OF CO2 WITH H2O: CARBONIC ACID ON MARS,

Corporate Author : BOEING SCIENTIFIC RESEARCH LABS SEATTLE WASH GEO-ASTRO PHYSICS LAB

Personal Author(s) : Harrison,Halstead ; Scattergood,D. M. ; Shupe,M. R.

Report Date : SEP 1967

Pagination or Media Count : 13

Abstract : The condensation and sublimation of mixtures of CO2 with H2O have been studied at temperatures between 80 and 230 K. Evidence is presented for the existence of metastable, solid-phase H2O.CO2. With near-equilibrium condensation the measured heats of sublimation of CO2 and H2O are independent of the mixing ratio; it is therefore unlikely that CO2 and H2O will co-precipitate on Mars at temperatures appreciably higher than required for CO2 to condense alone. (Author)

Descriptors :   (*CONDENSATION, MARS(PLANET)), (*ASTROPHYSICS, *MARS(PLANET)), CARBON DIOXIDE, HEAT OF SUBLIMATION, WATER, LOW TEMPERATURE, SOLIDIFIED GASES

Subject Categories : Astrophysics

Distribution Statement : APPROVED FOR PUBLIC RELEASE