Revised heat capacity and thermodynamic functions of GdVO4

The heat capacity of GdVO 4 has been determined by adiabatic calorimetry in the range 5–345 K. The present experimental data and earlier results have been used to evaluate the thermodynamic functions of gadolinium orthovanadate ( C p 0 ( T ), S 0 ( T ), H 0 ( T ) − H 0 (0), and Φ 0 ( T )) as functio...

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Bibliographic Details
Published in:Inorganic materials 2011-10, Vol.47 (10), p.1120-1125
Main Authors: Gavrichev, K. S., Ryumin, M. A., Tyurin, A. V., Gurevich, V. M., Komissarova, L. N.
Format: Article
Language:English
Subjects:
Calorimetry
Chemistry
Chemistry and Materials Science
Energy of formation
Free energy
Gadolinium
Heat capacity
Heat of formation
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
Specific heat
Thermodynamics
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Summary:The heat capacity of GdVO 4 has been determined by adiabatic calorimetry in the range 5–345 K. The present experimental data and earlier results have been used to evaluate the thermodynamic functions of gadolinium orthovanadate ( C p 0 ( T ), S 0 ( T ), H 0 ( T ) − H 0 (0), and Φ 0 ( T )) as functions of temperature (5–350 K). Its Gibbs energy of formation is determined to be Δ f G 0 (GdVO 4 , 298.15 K) = −1684.5 ± 1.6 kJ/mol.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168511090081