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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">kemsu</journal-id><journal-title-group><journal-title xml:lang="ru">СибСкрипт</journal-title><trans-title-group xml:lang="en"><trans-title>SibScript</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2949-2122</issn><issn pub-type="epub">2949-2092</issn><publisher><publisher-name>Kemerovo State University</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">kemsu-73</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Математика</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATHEMATICS</subject></subj-group></article-categories><title-group><article-title>ФИЗИКО-МАТЕМАТИЧЕСКАЯ МОДЕЛЬ РАВНОВЕСИЯ ЖИДКОЙ И ГАЗОВОЙ ФАЗ ПРИ ПОСТОЯННОМ ДАВЛЕНИИ</article-title><trans-title-group xml:lang="en"><trans-title>PHYSICAL AND MATHEMATICAL MODEL OF LIQUID AND GAS PHASES EQUILIBRIUM AT CONSTANT PRESSURE</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Есина</surname><given-names>З. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Esina</surname><given-names>Z. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Есина Зоя Николаевна – кандидат технических наук; доцент кафедры вычислительной математики КемГУ.8(3842) 54-27-70; ezn2@rambler.ru</p></bio><bio xml:lang="en"><p>Zoya N. Esina – Candidate of Technical Sciences; Associate Professor at the Department of Computational Mathe matics</p></bio><email xlink:type="simple">ezn2@rambler.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мурашкин</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Murashkin</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мурашкин Виталий Васильевич – руководитель РБ «Weishaupt». 8(3842)25-93-44; zitner@mail.ru</p></bio><bio xml:lang="en"><p>Vitaly V. Murashkin – Director</p></bio><email xlink:type="simple">zitner@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Корчуганова</surname><given-names>М. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Korchuganova</surname><given-names>M. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Корчуганова Маргарита Рашидовна – старший преподаватель кафедры вычислительной математики КемГУ.8(3842) 54-27-70; markarina@mail.ru</p></bio><bio xml:lang="en"><p>Margarita R. Korchuganova – Senior Lecturer at the Department of Computational Mathematics</p></bio><email xlink:type="simple">markarina@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Кемеровский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kemerovo State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Репрезентативное бюро «Weishaupt»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Weishaupt Representative office</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2013</year></pub-date><pub-date pub-type="epub"><day>23</day><month>02</month><year>2016</year></pub-date><volume>0</volume><issue>2-1</issue><fpage>72</fpage><lpage>80</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Есина З.Н., Мурашкин В.В., Корчуганова М.Р., 2013</copyright-statement><copyright-year>2013</copyright-year><copyright-holder xml:lang="ru">Есина З.Н., Мурашкин В.В., Корчуганова М.Р.</copyright-holder><copyright-holder xml:lang="en">Esina Z.N., Murashkin V.V., Korchuganova M.R.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.sibscript.ru/jour/article/view/73">https://www.sibscript.ru/jour/article/view/73</self-uri><abstract><p>Модель PCEAS относится к прогнозирующим молекулярным термодинамическим моделям; основанным на экспериментальных данных о параметрах чистых компонент и может описывать фазовое равновесие смеси раз личных веществ (жидких растворителей; твердых солей и полимеров); а также позволяет рассчитать параметры эвтектических и азеотропных точек. В процессе расчета определяются параметры ассоциации и сольватации в жидкости и в паре. Универсальный характер модели доказывается возможностью прогнозирования равновесия жидкость-твердое и жидкость пар при постоянном давлении.</p></abstract><trans-abstract xml:lang="en"><p>PCEAS is a forecasting molecular thermodynamic model based on the experimental data about pure components pa rameters. It can feature phase equilibrium of mixtures of different materials (liquid solvents; solid salts and polymers); and also allows to calculate parameters of eutectic and azeotropic points. During calculation the parameters of associa tion and salvation in liquid and in vapour are determined. The universality of the model is proved by the possibility of predicting liquid-solid and liquid-vapour equilibrium at constant pressure.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>равновесие жидкость-пар при изобарных условиях</kwd><kwd>азеотроп</kwd><kwd>параметр сольватации</kwd><kwd>параметр ассоциации</kwd></kwd-group><kwd-group xml:lang="en"><kwd>liquid-vapour equilibrium under isobaric requirements</kwd><kwd>azeotrope</kwd><kwd>parameter of solvation</kwd><kwd>parameter of association</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Isobaric vapour–liquid equilibria data for the binary system 1-propanol + 1-pentanol and isobaric vapour–liquid– liquid equilibria data for the ternary system water + 1-propanol + 1-pentanol at 101.3 kPa. / J. C. 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