. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 308 LIQUIDS AND GASES. briefly describe, iu mapping the actual position of the nurealizable por- tions of the curve. They have the form pictured in this figure. The rise trom the gaseous state is a gradual one, but the fall from the liquid state is abrupt. 36000. Fig. 2. Consider the volume 14 cubic centimeters per gram on the figure. The equi-volume vertical line cuts tlie isothennal lines for the temper- atures 175°, 180°, 185°, 190°, and
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 308 LIQUIDS AND GASES. briefly describe, iu mapping the actual position of the nurealizable por- tions of the curve. They have the form pictured in this figure. The rise trom the gaseous state is a gradual one, but the fall from the liquid state is abrupt. 36000. Fig. 2. Consider the volume 14 cubic centimeters per gram on the figure. The equi-volume vertical line cuts tlie isothennal lines for the temper- atures 175°, 180°, 185°, 190°, and so on, at certain definite pressures, which may be read from a properly-constructed diagram. We can map the course of lines of equal volume, of which the instance given is one, using temperatures as ordinates and pressures as absciss*. We can thus find the relations of temperature to pressure for certain definite volumes, which we may select to suit our convenience—say 2 per gram; 3, 4, 5, 6, and so on, Now, all such lines are straight—that is, the relation of pressure to temperature, at constant volume, is one of the. 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 Smithsonian Institution. Board of Regents; United States National Museum. Report of the U. S. National Museum; Smithsonian Institution. Report of the Secretary. Washington : Smithsonian Institution
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