. A commentary on the scientific writings of J. Willard Gibbs. Gibbs, Joniah Willard, 1839-1908; Science; Thermodynamics. 174 BUTLER ART. D system. Suppose that at a pressure p and a temperature t', the f-x curve for homogeneous phases has the form AB (Fig. 9), with a double tangent PQ. Homogeneous phases between P. Fig. 9 and Q are unstable with respect to discontinuous changes. Between R and S, the ^-curve is convex upwards, , {d^^/dx%, t < 0, and these phases are unstable with respect to continuous changes. Between P and R, and between Q and S the f-curve is still concave upwards, i.

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. A commentary on the scientific writings of J. Willard Gibbs. Gibbs, Joniah Willard, 1839-1908; Science; Thermodynamics. 174 BUTLER ART. D system. Suppose that at a pressure p and a temperature t', the f-x curve for homogeneous phases has the form AB (Fig. 9), with a double tangent PQ. Homogeneous phases between P. Fig. 9 and Q are unstable with respect to discontinuous changes. Between R and S, the ^-curve is convex upwards, , {d^^/dx%, t < 0, and these phases are unstable with respect to continuous changes. Between P and R, and between Q and S the f-curve is still concave upwards, , and these phases, though unstable with regard to discontinuous changes are stable with regard to continuous changes. The points R and S, for which d'^/dx' = 0,. 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 Donnan, F. G. (Frederick George), 1870-1956; Haas, Arthur Erich, 1884-1941. New Haven, Yale University Press; London, H. Milford, Oxford University Press

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Keywords: ., bookcentury1900, booksubjectscience, booksubjectthermodynamics