Die molekularkinetische Theorie der Schallgeschwindigkeit von Schaaffs

Schaaffs, W.

doi:10.1007/978-3-642-87538-0_11

Cited by 8 publications

(8 citation statements)

References 13 publications

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“…The CFT [11,12] (Equation (5)) and FLT [11,13], (Equation (6)) for the isentropic compressibilities were applied: [10].…”

Section: 2mentioning

confidence: 99%

“…However, a systematic study for volumetric and acoustic properties for mixtures of ethanol þ (benzene, toluene, ethylbenzene, isooctane, TBA and xylene isomers), as presented here, were not published yet. Finally the models, Collision Factor Theory (CFT) [11,12] and Free Length Theory (FLT) [11,13] were applied to predict deviations in the isentropic compressibilities of binary mixtures.…”

Section: Introductionmentioning

confidence: 99%

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Influence of temperature on thermodynamics of ethanol + hydrocarbon gasoline additives

Gonzalez-Olmos¹,

Iglesias²,

Mattedi³

2010

Physics and Chemistry of Liquids

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The densities and ultrasonic velocity of the binary mixtures ethanol þ (benzene, toluene, ethylbenzene, isooctane, tert-butyl alcohol and xylene isomers) at the range 288.15-323.15 K and atmospheric pressure, have been measured over the whole concentration range. The experimental excess volumes and deviation of isentropic compressibilities data have been correlated with a Redlich-Kister type polynomial accurately. The gathered data improve open literature related to gasoline additives, as the comparison has proved, and help to understand the ethanol volumetric and acoustic trend into different chemical environment.

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“…The CFT [11,12] (Equation (5)) and FLT [11,13], (Equation (6)) for the isentropic compressibilities were applied: [10].…”

Section: 2mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of temperature on thermodynamics of ethanol + hydrocarbon gasoline additives

Gonzalez-Olmos¹,

Iglesias²,

Mattedi³

2010

Physics and Chemistry of Liquids

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“…Sound speeds were evaluated on the basis of Jacobson's free length theory [31,32] and Schaaff's collision factor theory [33][34][35]. The details of the theories were discussed in our earlier paper [36].…”

Section: Resultsmentioning

confidence: 99%

Excess volumes, densities, speeds of sound and viscosities of binary systems of diisopropyl ether and acetates at 303.15K

Reddy

Subbaiah

et al. 2010

Journal of Industrial and Engineering Chemistry

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“…The details of derivations and terms used in the above relations may be obtained from the literature. [16][17][18][19][20][21][47][48][49][50] The average percentage of errors in the theoretically calculated ultrasonic speeds as compared to the experimental values for the three systems are summarized in Table 7. A perusal of Table 7 indicates that FLT predicts the ultrasonic speed best with minimum average percentage errors in the range 0.46-0.97%, followed by CFT which predicts ultrasonic speed with an average error in the range 0.93-1.14% for all the three systems studied.…”

Section: Ultrasonic Speedmentioning

confidence: 99%

“…The experimental values of V E have also been analysed by using Flory 12,13 as well as Prigogine-Flory-Patterson (PFP) 14,15 theories. The ultrasonic speeds in these mixtures were analyzed in terms of collision factor theory, 16 free length theory, 17 Nomoto's relation, 18 Van Dael and Vangeel ideal mixing relation, 19 Auerbach relation 20 and Junjie relation. 21 The relative merits of these theories and relations are discussed by comparing theoretical values of ultrasonic speed with the experimental values.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic and Volumetric Studies of Molecular Interactions in Acetonitrile + 1‐Alkanol (C₆, C₈, C₁₀) Binary Liquid Mixtures at Different Temperatures

Ali¹,

Nain²,

Abida³

2004

J Chinese Chemical Soc

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The densities, r, and ultrasonic speeds, u, have been measured in the binary liquid mixtures of acetonitrile (ACN) with 1-hexanol, 1-octanol and 1-decanol, and in the pure components, as a function of composition at 25, 30, 35, 40 and 45°C. The deviations in isentropic compressibility, Dks, excess molar volume, V E , deviations in ultrasonic speed, Du, apparent molar compressibility, K f,2, apparent molar volume, Vf,2, partial molar compressibility,`K°f,2, and partial molar volume,`V°2, of 1-alkanols in ACN have been calculated from the experimental data of densities and ultrasonic speeds. The variations of these parameters with composition of the mixtures indicate that the structure-breaking effect dominates over that of the hydrogen-bonding effect between unlike molecules, suggesting that ACN-alkanol interaction is weaker than ACN-ACN and alkanolalkanol interactions, and that the interaction (ACN-alkanol) follows the order: 1-hexanol > 1-octanol > 1decanol. The excess molar volume data have been analysed by using Flory and Prigogine-Flory-Patterson theories. Further, the ultrasonic speeds in these mixtures were theoretically calculated with the help of several theories and empirical relations using the pure component data. The validity and relative merits of these theories and relations have been discussed.

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Die molekularkinetische Theorie der Schallgeschwindigkeit von Schaaffs

Cited by 8 publications

References 13 publications

Influence of temperature on thermodynamics of ethanol + hydrocarbon gasoline additives

Influence of temperature on thermodynamics of ethanol + hydrocarbon gasoline additives

Excess volumes, densities, speeds of sound and viscosities of binary systems of diisopropyl ether and acetates at 303.15K

Ultrasonic and Volumetric Studies of Molecular Interactions in Acetonitrile + 1‐Alkanol (C₆, C₈, C₁₀) Binary Liquid Mixtures at Different Temperatures

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Die molekularkinetische Theorie der Schallgeschwindigkeit von Schaaffs

Cited by 8 publications

References 13 publications

Influence of temperature on thermodynamics of ethanol + hydrocarbon gasoline additives

Influence of temperature on thermodynamics of ethanol + hydrocarbon gasoline additives

Excess volumes, densities, speeds of sound and viscosities of binary systems of diisopropyl ether and acetates at 303.15K

Ultrasonic and Volumetric Studies of Molecular Interactions in Acetonitrile + 1‐Alkanol (C6, C8, C10) Binary Liquid Mixtures at Different Temperatures

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Product

Resources

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Ultrasonic and Volumetric Studies of Molecular Interactions in Acetonitrile + 1‐Alkanol (C₆, C₈, C₁₀) Binary Liquid Mixtures at Different Temperatures