. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography M wu-ii 1(>7I I) I' \ \ I S ! \NH U I I I I \ M l> ^ ( O reasonable to expect such adsorption on its own solid, ice. In addition, it i^ very interesting that as the tem- perature of a crystal approaches its niching point, the pressure of vapor in equilibrium with the solid steadih and natural!} approaches that in equilibrium with the supercooled liquid. This means that, if multi-layer adsorption of water vapor can incur on ice at all
. Collected reprints / Atlantic Oceanographic and Meteorological Laboratories [and] Pacific Oceanographic Laboratories. Oceanography M wu-ii 1(>7I I) I' \ \ I S ! \NH U I I I I \ M l> ^ ( O reasonable to expect such adsorption on its own solid, ice. In addition, it i^ very interesting that as the tem- perature of a crystal approaches its niching point, the pressure of vapor in equilibrium with the solid steadih and natural!} approaches that in equilibrium with the supercooled liquid. This means that, if multi-layer adsorption of water vapor can incur on ice at all, new possibilities arise for helping us understand the growth characteristics of ice cyrstals. In order to develop this picture more quantitatively, consider the model of multi-layer adsorption developed b\ /Jrunauer, /.mmett and Tellei (). In utilizing this BET theon we realize that it has many failings but, nonetheless, it does describe a number of adsorption systems quite well. In any case, the intent of the follow- ing treatment is to present a quantitative example of multi-layer adsorption which fits our physical picture. The effects we are trying to illustrate would arise from anv model in which the concentration >i [cm-2] of adsorbed molecules increases with increasing pressure sufficiently strongly near the liquid condensation pressure. The approach to the liquid condensation pressure is usually specified by the relative pressure, P X= , (8) Pl(T) where P is the vapor pressure in dynamic equilibrium. 0 0 5 10 RELATIVE PRESSURE X=P/PL Fig. 3. Adsorption isotherms for various values of the adsorption parameter C, according to the model of Brunauer el at. (1938).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Atlantic Oceanographic and Meteorological Laboratories; Pacific Oceanographic Labora
Size: 1288px × 1941px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionamericana, booksponsorlyrasismemb
