Critical Phenomena in Binary Fluid Mixtures PDF Download
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Author: Antonius van Pelt
Publisher:
ISBN:
Category :
Languages : en
Pages : 240
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Author: Antonius van Pelt
Publisher:
ISBN:
Category :
Languages : en
Pages : 240
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Book Description
Author: Mikhail Alekseevich Anisimov
Publisher: CRC Press
ISBN: 9782881248061
Category : Critical phenomena (Physics).
Languages : en
Pages : 452
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Book Description
Phase transitions and critical phenomena in liquids and liquid crystals have been the subject of intensive research since the 1960s. However, books on this fascinating subject have tended to be written by theorists for theorists. Professor Anisimov offers us a new approach: he aims to introduce experimentalists to the modern theories and their applications. After introducing the thermodynamics of phase transitions, he presents the modern theory of critical phenomena. He then concludes by illustrating the utility of this theory in the analysis of experimental measurements in classical fluids and binary mixtures, superfluid mixtures of helium isotopes and liquid crystals. Not only will this book be enjoyed by experimental physicists, chemists and material scientists, it will also offer the theorist an insight into the interpretation of the experimentalist's work.
Author: R.J. Sadus
Publisher: Elsevier
ISBN: 0444596666
Category : Science
Languages : en
Pages : 411
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Book Description
The high pressure phase behaviour of binary fluid mixtures has been extensively studied during the last three decades. There is ample experimental data for a wide variety of binary mixtures and extensive methods for prediction have been developed. In contrast, the investigation of ternary and other multicomponent fluids is in its infancy. Experimental ternary mixture critical data are very rare and theoretical studies have been limited to data correlation rather than genuine prediction. The phase behaviour of ternary and other multicomponent fluid mixtures has many novel aspects which are not manifested in binary mixtures. The properties of ternary mixtures are also likely to be more difficult to characterize experimentally. It is in this context that calculated phase diagrams have an important role in leading the discovery of new phenomena and guiding experimental work. The criteria for phase equilibria of multicomponent fluids with particular emphasis on the critical state are examined in this book, and models for predicting fluid equilibria (e.g., different equations of state) are compared. Particular attention is paid to the critical state of ternary mixtures which has hitherto been largely neglected. The problems associated with predicting ternary equilibria are discussed, and some novel aspects of ternary critical phenomena are illustrated. The books also describes a novel type of critical transition which appears to be a common feature of the equilibria of ternary mixtures. Extensive phase diagrams of a wide range of ternary mixtures including systems containing carbon dioxide, water, nitrogen and tetrafluoromethane as one or more component are presented. The theoretical treatment is detailed in the appendix and a computation of known experimental critical points is also included.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
The first experimental data on the behavior of a critical system as it approaches two dimensionality are presented. Measurements of the bulk coexistence curve by use of refractive index techniques were done on the binary fluid mixture methanol--cyclohexane. These measurements gave the critical exponent .beta. = 0.326 +- 0.003, which agrees with recent Ising-model calculations. This same binary fluid mixture was then constrained between two highly reflective, optically flat pieces of fused silica in an interferometer. The critical temperature and coexistence curve were determined as the spacing between the flats was varied from 1 .mu.m to 60 .mu.m. The critical temperature was directly measured for spacings between 3 and 60 .mu.m. It was found that, if the walls were close enough together (less than or equal to 6 .mu.m), then the drops that form on phase separation would span the intervening space. The coexistence curves of these thick films (less than or equal to 6 .mu.m) were determined from measurements of the difference in refractive index between the two phases that appeared as drops. It was found that the shift in the critical temperature as the spacing was varied followed a logarithmic dependence. Such a dependence is not expected from Scaling Theory for an Ising model, but is to be expected of systems with effectively infinite-range interactions. The coexistence curves for each spacing of the thick film indicated that the critical exponent .beta. was close to 0.5, which is the mean-field (infinite-range-interaction) value and not the two-dimensional Ising-model value of 0.125. The amplitude of the coexistence curves was found to vary with spacing as L/sup z/ with z in the range 0.6 .-->. 0.8. This was a much larger dependence than expected from the theory. 29 figures, 5 tables.
Author: Eldred H. Chimowitz
Publisher: Oxford University Press
ISBN: 0198028024
Category : Technology & Engineering
Languages : en
Pages : 382
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Book Description
Introduction to Critical Phenomena in Fluids encompasses the fundamentals of this relatively young field, as well as applications in the fields of chemical engineering, analytical chemistry, and environmental remediation processing. The exercises in the text have been developed in a way that makes the book suitable for graduate courses in chemical engineering thermodynamics and physical chemistry.
Author: Stella Michaels
Publisher:
ISBN:
Category : Critical phenomena (Physics)
Languages : en
Pages : 238
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Book Description
Author: Donald Thomas Jacobs
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 232
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Book Description
Author: Sarah Elizabeth Peach
Publisher:
ISBN:
Category :
Languages : en
Pages : 310
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722343088
Category :
Languages : en
Pages : 28
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Book Description
Critical phenomena has been the subject of physics research for many years. However, only in recent years has the research effort become intense. The current intensity has caused the study of critical phenomena to be grouped into a previous older era and a present contemporary era. Turbidity cell filling with methanol cyclohexane is one of the first steps toward a further understanding of critical phenomena. Work performed during the research period is outlined. During this period, research was spent developing apparatus and techniques that will make it possible to study critical phenomena through turbidity measurements on methanol cyclohexane. Topics covered range from the orientation of turbidity cell parts for assembly to the filling apparatus and procedure used when th cell is built. The last section will briefly cover some of the observations made when viewing the cell in a controlled water bath. However, before mention is made of the specifics of the summer research, a short introduction to critical phenomena and turbidity and how they relate to this experiment is provided. Jacobs, Donald T. and Becker, James S. Unspecified Center NAG3-1354...
Author: Baichuan Hu
Publisher:
ISBN:
Category : Critical phenomena (Physics)
Languages : en
Pages : 398
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Book Description
