Teplofizika vysokikh temperatur
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Teplofizika vysokikh temperatur, 2020, Volume 58, Issue 5, Pages 764–769
DOI: https://doi.org/10.31857/S0040364420050075
(Mi tvt11372)
 

This article is cited in 3 scientific papers (total in 3 papers)

Thermophysical Properties of Materials

Thermodynamics of the evaporation of yttrium triiodide in the form of $\rm YI_3$ and $\rm Y_2\rm I_6$ molecules

E. L. Osinaa, L. N. Gorokhova, S. B. Osinb

a Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow
b Lomonosov Moscow State University, Faculty of Chemistry
Full-text PDF (176 kB) Citations (3)
Abstract: In this paper, we select the values of the molecular constants and calculate the thermodynamic functions of $\rm YI_3$ and $\rm Y_2\rm I_6$ based on a critical analysis of experimental and theoretical data on the structure and vibration frequencies of the monomeric and dimeric forms of yttrium triiodide molecules. Using the literature data on the ratio of the partial pressures of dimeric and monomeric molecules and the third law of thermodynamics, we determine the enthalpy of the $\rm YI_3(\text{cr., l}) + \rm YI_3(\text{g}) = \rm Y_2\rm I_6(\text{g})$ reaction and calculate the composition of the yttrium iodide vapor in the temperature range of $800$$961$ K, for which there are literature data on the total pressure. In the considered temperature range, the $P_{\text{d}}/P_{\text{m}}$ pressure ratio is found to increase from $0.003$ to $0.014$. The determined partial pressures are used to calculate the sublimation enthalpies of yttrium triiodide in the form of monomeric and dimeric molecules and the formation enthalpies of these molecules. The obtained values have been entered into the database of the IVTANTHERMO software package.
Received: 18.03.2020
Revised: 18.03.2020
Accepted: 18.06.2020
English version:
High Temperature, 2020, Volume 58, Issue 5, Pages 694–698
DOI: https://doi.org/10.1134/S0018151X20050065
Bibliographic databases:
Document Type: Article
UDC: 544.31.031:546.881.5
Language: Russian
Citation: E. L. Osina, L. N. Gorokhov, S. B. Osin, “Thermodynamics of the evaporation of yttrium triiodide in the form of $\rm YI_3$ and $\rm Y_2\rm I_6$ molecules”, TVT, 58:5 (2020), 764–769; High Temperature, 58:5 (2020), 694–698
Citation in format AMSBIB
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\by E.~L.~Osina, L.~N.~Gorokhov, S.~B.~Osin
\paper Thermodynamics of the evaporation of yttrium triiodide in the form of $\rm YI_3$ and $\rm Y_2\rm I_6$ molecules
\jour TVT
\yr 2020
\vol 58
\issue 5
\pages 764--769
\mathnet{http://mi.mathnet.ru/tvt11372}
\crossref{https://doi.org/10.31857/S0040364420050075}
\elib{https://elibrary.ru/item.asp?id=43962083}
\transl
\jour High Temperature
\yr 2020
\vol 58
\issue 5
\pages 694--698
\crossref{https://doi.org/10.1134/S0018151X20050065}
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  • This publication is cited in the following 3 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Teplofizika vysokikh temperatur Teplofizika vysokikh temperatur
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