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Knudsen measurements of the sublimation and the heat of formation of GeSeKnudsen effusion studies of the sublimation of polycrystalline GeSe have been performed employing mass spectrometry. The results demonstrate that GeSe vaporizes congruently under present experimental conditions according to the reaction: GeSe(s) yields GeSe(g). The mean values for the third-law heat and second-law entropy of reaction based on direct mass-loss data are 42.0 + or - 1.5 kcal/mole and 42.3 + or - 1.6 eu respectively. From these data the standard heat of formation was calculated to be -10.1 + or - 2.0 kcal/mole, and the standard absolute entropy was determined to be 16.9 + or - 2.0 eu.
Document ID
19750043477
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Wiedemeier, H.
Irene, E. A.
(Rensselaer Polytechnic Institute, Troy, N.Y., United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1974
Publication Information
Publication: Zeitschrift fuer anorganische und allgemeine Chemie
Volume: 404
Subject Category
Inorganic And Physical Chemistry
Accession Number
75A27549
Funding Number(s)
CONTRACT_GRANT: NGL-33-018-003
Distribution Limits
Public
Copyright
Other

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