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Heat Capacity and Thermodynamic Functions of Ga2Se3 from 14 to 320 K

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Abstract

The heat capacity of Ga2Se3 is measured from 14 to 320 K by adiabatic calorimetry. The smoothed heat capacity data are used to evaluate temperature-dependent thermodynamic functions (entropy, enthalpy increment, and reduced Gibbs energy) of gallium selenide. Under standard conditions, the thermodynamic properties of Ga2Se3 are C 0p (298.15 K) = 120.8 ± 0.2 J/(K mol), S 0(298.15 K) = 180.4 ± 0.4 J/(K mol), H 0(298.15 K) - H 0(0) = 25.32 ± 0.05 kJ/mol, and Φ0(298.15 K) = 95.52 ± 0.19 J/(K mol). The Debye characteristic temperature of Ga2Se3 evaluated from heat capacity data is 340 ± 10 K.

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Authors and Affiliations

  1. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119991, Russia

    A. V. Tyurin, K. S. Gavrichev, L. N. Golushina & V. E. Gorbunov

  2. Moscow State University, Vorob'evy gory 1, Moscow, 119899, Russia

    V. P. Zlomanov

Authors
  1. A. V. Tyurin
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  2. K. S. Gavrichev
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  3. L. N. Golushina
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  4. V. E. Gorbunov
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  5. V. P. Zlomanov
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Translated from Neorganicheskie Materialy, Vol. 41, No. 11, 2005, pp. 1297–1300.

Original Russian Text Copyright © 2005 by Tyurin, Gavrichev, Golushina, Gorbunov, Zlomanov.

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Tyurin, A.V., Gavrichev, K.S., Golushina, L.N. et al. Heat Capacity and Thermodynamic Functions of Ga2Se3 from 14 to 320 K. Inorg Mater 41, 1139–1143 (2005). https://doi.org/10.1007/s10789-005-0275-x

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  • DOI: https://doi.org/10.1007/s10789-005-0275-x

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