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Thermodynamic function of lithium and sodium tetrafluoroaluminate from spectroscopic data
Author(s) -
Snelson A.,
Cyvin S. J.
Publication year - 1972
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19723900312
Subject(s) - enthalpy , thermodynamics , heat capacity , entropy (arrow of time) , chemistry , value (mathematics) , specific heat , lithium (medication) , physics , mathematics , statistics , medicine , endocrinology
Thermodynamic functions (heat capacity, enthalpy, free energy, and entropy) were recalculated for 7 LiAlF 4 from new spectroscopic data. The calculations were extended to include 6 LiAlF 4 and NaAlF 4 . The calculated entropy value of S 925 0= 110.98 e. u from the data on 7 LiAlF 4 shows excellent agreement with the recently reported thermo dynamic value (110.9 ± 2.5 e. u.). For NaAlF 4 the agreement is not so good, but the calculated value of S 910 0= 113.20 e. u. compares fairly well with the most recent thermo dynamic value (116.8 ± 2.9 e.u.).