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Effets isotopiques et propriétés thermodynamiques en phase condensée. II

✍ Scribed by I. Prigogine; J. Jeener

Publisher
Elsevier Science
Year
1954
Weight
227 KB
Volume
20
Category
Article
ISSN
0031-8914

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✦ Synopsis

The method developed in a recent paper 1) by the authors and 1~. B i n g e n is extended to real three dimensional lattices. The zero point energy is calculated for isotopic mixtures and pure isotopes. The results obtained for one dimensional lattices are shown to remain qualitatively valid for three dimensional lattices; however, the heat of mixing is smaller than in the one-dimensional case. The stable state at 0°K always requires a separation into pure isotopes.

📜 SIMILAR VOLUMES

Effets isotopiques et propriétés thermod
Effets isotopiques et propriétés thermodynamiques en phase condensée. III
✍ I. Prigogine; R. Bingen; A. Bellemans 📂 Article 📅 1954 🏛 Elsevier Science ⚖ 983 KB

Le premier terme est n6gatif car si B ale volume le plus grand, il aura aussi la compressibilit6 la plus grande; au contraire, le second terme est positif \*) Le premier terme de (2.5) est ~quivalent ~ la formule (2.19) de Prigogine et Philippot 4)>. Le second terme avait 6t6 n6glig6 clans ce travai

Effets isotopiques et propriétés thermod
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✍ I. Prigogine; R. Bingen; J. Jeener 📂 Article 📅 1954 🏛 Elsevier Science ⚖ 587 KB

The zero point energy of solid isotopic mixtures is discussed and their properties are compared with those of the pure isotopes. The case of a one-dimensional chain of molecules is considered in some detail because the calculations may then be performed in a rigourous way. An extension of the result