"Measurements of the condensation coefficient of CO₂ and H₂O have been made using a molecular beam and quartz crystal microbalances. The dependence of the condensation coefficient on variables such as population density on the substrate, temperature of the substrate, molecular beam intensity and temperature of the molecular beam, was investigated. The results are explained using heterogeneous nucleation theory for low density population, and a new approach for high density population is presented. The rate of sublimation of these two gases was measured directly. The results are reported in terms of vapor pressure in the range 10⁻⁹ to 10⁻⁴ Torr. The spatial distribution of reflected and sublimated CO₂ and H₂O molecules is found to follow the diffuse cosine law"--Abstract, page ii.
James, William Joseph
Levenson, L. L., 1928-1998
Roach, D. Vincent
Bertrand, Gary L.
Robertson, B. Ken
Ph. D. in Chemistry
National Science Foundation (U.S.)
University of Missouri--Rolla
ix, 84 pages
© 1972 Victor Cazcarra, All rights reserved.
Dissertation - Open Access
Library of Congress Subject Headings
Sublimation (Chemistry) -- Measurement
Materials at low temperatures
Print OCLC #
Electronic OCLC #
Link to Catalog Recordhttp://laurel.lso.missouri.edu/record=b1066506~S5
Cazcarra, Victor, "Condensation and sublimation of carbon dioxide and water molecules at cryogenic temperatures" (1972). Doctoral Dissertations. 213.