Journal ArticleDOI
Velocity of Sound in Liquids and Chemical Constitution
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TLDR
In this paper, it was shown that the velocity of sound cannot be a proper basis of comparison in any homologous series and the result of plotting the constant R against the molecular weight of members of a homology series leads to the equation R = αM + β, where α is a general constant and β a characteristic constant for any one homology.Abstract:
A study of the recently obtained data on the velocity of sound and density in liquids reveals a simple relation between these quantities namely the law, v⅓M/ρ = R where v is the velocity of sound in the liquid, M the molecular weight, ρ the density and R a constant independent of temperature. It is shown that the velocity of sound cannot be a proper basis of comparison in any homologous series. The result of plotting the constant R against the molecular weight of members of homologous series leads to the equation R = αM + β where α is a general constant and β a characteristic constant for any one homologous series. The difference in R for successive members of homologous series is a constant independent of the series and R is an additive function of the chemical structure. Values of R for hydrogen, carbon, oxygen, bromine, and chlorine are tabulated.read more
Citations
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The constitutive behavior of ammonium ionic liquids: a physiochemical approach
Akash Gupta,Ramesh L. Gardas +1 more
TL;DR: In this article, the authors presented the thermodynamics for Ionic liquids and the conception of a middleman in the additivity phenomenon through molecular tailoring and a validated dataset, wherein Wada's theory for molecular compressibility, A, is found inconsistent and is thus redefined.
Journal ArticleDOI
Thermally- and Phase Transformation-Induced Volume Changes of Polymers for Actuator Applications
B.Z. Jang,Z.J. Zhang +1 more
TL;DR: In this article, the authors explored the potential of using polymer volume changes as a source of actuating power and found that polymers can exert a great counteracting stress or pressure on the constraining body.
Journal ArticleDOI
Volumetric, acoustic and IR spectroscopic investigation of molecular interactions in selected binary liquid mixtures of N-methyl-2-pyrrolidone and alkylamines over the temperature range 303.15–318.15 K
D. Bala Karuna Kumar,K. Rayapa Reddy,G. Srinivasa Rao,P.B. Sandhyasri,P.V.S. Sairam,C. Rambabu +5 more
TL;DR: In this article, the densities and speeds of sound for pure liquids N-methyl-2-pyrrolidone (NMP), propylamine (PA), butylamide (BA), dipropylamine, and dipropy-laminate (DPA) were measured at atmospheric pressure as a function of composition of NMP in the temperature range of 303.15-318.15
Quantitative NDE applied to composites and metals
TL;DR: In this article, the relationship between ultrasonics and polymer cure is discussed and a two-dimensional physical model is described that permits delaminations in samples of Space Shuttle Solid Rocket Motors to be detected in thermograms in the presence of cooling effects and uneven heating.
Journal ArticleDOI
Phase transition studies in N-(p-n-pentyloxy benzylidene) p-Toluidine
TL;DR: In this article, the variations of molar volume Mv and ultrasonic velocity V with temperature in N(p-n-pentyloxy benzylidene) p-toluidine are presented.
References
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Journal ArticleDOI
Pressure Coefficients of Acoustic Velocity for Nine Organic Liquids
TL;DR: In this paper, a pressure supersonic interferometer was used to examine nine organic liquids at frequencies a little less than 200 kc and at temperatures varying from 22.7°C to 25.5°C for the various liquids.
Journal ArticleDOI
Die Schallgeschwindigkeiten von Lösungen und ihre Beziehungen zur Schallgeschwindigkeit des gelösten Stoffes
TL;DR: In this paper, an den Schallkennlinien von Losungen ein Extrapolationsverfahren, das die Schallgeschwindigkeit geloster Substanzen zu bestimmen gestattet, entwickelt.
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