. Carnegie Institution of Washington publication. . 100 A •«—Composition Fig. 16. 100 B in the solid and liquid phases determines the temperature of change of state.) If A crystallizes alone from A +B, the vapor-tension curve will continue on to z2 and the temperature of solidification fall to t2', while if the solid phase contains both components but is richer in A than the liquid phase, solidification will occur at an intermediate point. Fig. 16 will serve to show the crucial character of the issue raised. The ordinates represent temperatures and the abscissas percentages of A and B. Kuster
. Carnegie Institution of Washington publication. . 100 A •«—Composition Fig. 16. 100 B in the solid and liquid phases determines the temperature of change of state.) If A crystallizes alone from A +B, the vapor-tension curve will continue on to z2 and the temperature of solidification fall to t2', while if the solid phase contains both components but is richer in A than the liquid phase, solidification will occur at an intermediate point. Fig. 16 will serve to show the crucial character of the issue raised. The ordinates represent temperatures and the abscissas percentages of A and B. Kuster finds his solid and liquid phases identical in composition within the limits of experimental error and the solidify- ing temperature on the line A B at a point which can be determined from the proportions of the components—at d for example. But the laws of dilute solutions tell us that if the phases are identical in com- position the solidifying point of A -+- B must fall at c, i. c, must remain the same as for pure A. The temperatures at which Krister's observations were made and their painstaking character leave no doubt as to the validity of the *F. Garelli, La Gazzetta Chimica Italiana, xxvi, p. 263, 1894. t Bodlander, Neues Jahrb. f. Min., Beilage, Bd. xn, p. 52, 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 Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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