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Thermochemical properties of sparingly soluble selenates and entropy of aqueous selenate ion

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Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Summary

  1. 1.

    As a result of the measurements described in our article it has been found that for the reaction Basolid + Sesolid + 2O2=BaSeO4, ΔH298=-279.2 Cal/mole and ΔF298=-249.1 Cal/mole; and for the reaction Pbsolid + Sesolid + 2O2=PbSeO4 ΔH298 == -148.7 Cal/mole and ΔF298=-120.5 Cal/mole.

  2. 2.

    From the thermodynamic data for H2SeO4, SrSeO4, BaSeO4, PbSeO4, and Tl2SeO4 the average value of the entropy of the aqueous SeO 2−4 ion is S=5.5 ± 0.3 entropy units.

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Authors and Affiliations

  1. D. I. Mendeleev Chemicotechnological Institute, USSR

    N. M. Selivanova, A. F. Kapustinskii & G. A. Zubova

Authors
  1. N. M. Selivanova
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  2. A. F. Kapustinskii
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  3. G. A. Zubova
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Selivanova, N.M., Kapustinskii, A.F. & Zubova, G.A. Thermochemical properties of sparingly soluble selenates and entropy of aqueous selenate ion. Russ Chem Bull 8, 174–180 (1959). https://doi.org/10.1007/BF00917358

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  • DOI: https://doi.org/10.1007/BF00917358

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