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

  • N. M. Selivanova
  • A. F. Kapustinskii
  • G. A. Zubova
Article

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 4 2− ion is S=5.5 ± 0.3 entropy units.

     

Keywords

Entropy Selenate Thermodynamic Data Thermochemical Property H2SeO4 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Consultants Bureau Inc. 1960

Authors and Affiliations

  • N. M. Selivanova
    • 1
  • A. F. Kapustinskii
    • 1
  • G. A. Zubova
    • 1
  1. 1.D. I. Mendeleev Chemicotechnological InstituteUSSR

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