{"title":"Critical Anomalies and Phase Diagrams of a Binary Mixture","authors":"M. Yu. Belyakov","doi":"10.1134/s0018151x23020025","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The study examines the behavior of a binary mixture in the vicinity of the liquid–vapor critical point. It is shown that the pressure dependence on density along the critical isotherm, predicted within the framework of the existing theory of critical phenomena, does not match the shape of the dew-bubble curves. The problem is analyzed with the equation of state for a multicomponent near-critical mixture, adapted to describe thermophysical properties of a binary mixture. To eliminate the problem it is proposed to impose an additional condition on the equation of state coefficient. Possible consequences of imposing such a condition are considered.</p>","PeriodicalId":13163,"journal":{"name":"High Temperature","volume":"19 1","pages":""},"PeriodicalIF":1.0000,"publicationDate":"2024-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"High Temperature","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1134/s0018151x23020025","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
The study examines the behavior of a binary mixture in the vicinity of the liquid–vapor critical point. It is shown that the pressure dependence on density along the critical isotherm, predicted within the framework of the existing theory of critical phenomena, does not match the shape of the dew-bubble curves. The problem is analyzed with the equation of state for a multicomponent near-critical mixture, adapted to describe thermophysical properties of a binary mixture. To eliminate the problem it is proposed to impose an additional condition on the equation of state coefficient. Possible consequences of imposing such a condition are considered.
期刊介绍：
High Temperature is an international peer reviewed journal that publishes original papers and reviews written by theoretical and experimental researchers. The journal deals with properties and processes in low-temperature plasma; thermophysical properties of substances including pure materials, mixtures and alloys; the properties in the vicinity of the critical point, equations of state; phase equilibrium; heat and mass transfer phenomena, in particular, by forced and free convections; processes of boiling and condensation, radiation, and complex heat transfer; experimental methods and apparatuses; high-temperature facilities for power engineering applications, etc. The journal reflects the current trends in thermophysical research. It presents the results of present-day experimental and theoretical studies in the processes of complex heat transfer, thermal, gas dynamic processes, and processes of heat and mass transfer, as well as the latest advances in the theoretical description of the properties of high-temperature media.
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