Speed of sound and isentropic compressibility of (1-butanol +n-hexane + 1-chlorobutane) and the constituent binary mixtures at the temperatures 298.15 K and 313.15 K
“…Experimental values of density, viscosity, and speed of sound for the pure components at the three temperatures are reported in Table 1 along with the available bibliographic values. [8][9][10][11][12][13][14][15][16] Apparatus and Procedure. The excess molar enthalpies (H m E ) were determined with a Thermometric 2277 thermal activity monitor maintained at ( 0.0002 K that operates under constant-flow conditions.…”
Section: Methodsmentioning
confidence: 99%
“…The claimed purities of these liquids were verified by gas−liquid chromatography (HP 6890) using a flame ionization detector. Experimental values of density, viscosity, and speed of sound for the pure components at the three temperatures are reported in Table along with the available bibliographic values. − …”
Excess molar enthalpies, densities, speeds of sound, and viscosities at the temperatures (283.15, 298.15, and 313.15) K have been measured for the binary mixture 2-methyltetrahydrofuran + 1-butanol. From the experimental data, excess molar volumes, excess isentropic compressibilities, excess speeds of sound, and viscosity deviations have been calculated. These excess properties and deviations have been fitted to Redlich-Kister equations.
“…Experimental values of density, viscosity, and speed of sound for the pure components at the three temperatures are reported in Table 1 along with the available bibliographic values. [8][9][10][11][12][13][14][15][16] Apparatus and Procedure. The excess molar enthalpies (H m E ) were determined with a Thermometric 2277 thermal activity monitor maintained at ( 0.0002 K that operates under constant-flow conditions.…”
Section: Methodsmentioning
confidence: 99%
“…The claimed purities of these liquids were verified by gas−liquid chromatography (HP 6890) using a flame ionization detector. Experimental values of density, viscosity, and speed of sound for the pure components at the three temperatures are reported in Table along with the available bibliographic values. − …”
Excess molar enthalpies, densities, speeds of sound, and viscosities at the temperatures (283.15, 298.15, and 313.15) K have been measured for the binary mixture 2-methyltetrahydrofuran + 1-butanol. From the experimental data, excess molar volumes, excess isentropic compressibilities, excess speeds of sound, and viscosity deviations have been calculated. These excess properties and deviations have been fitted to Redlich-Kister equations.
“…The total uncertainty in the temperature measurement is within ± 0.01 K. The estimated uncertainty of the density measurements was ± 0.01 %. Experimental values of density for the investigated liquids were compared with those found in the literature. − 1 Deviation of literature density ρ of 1-chlorobutane from eq 1 as a function of temperature: Δ, this work; □, ref ; ▴, ref ; ×, ref ; *, ref ; · , ref ; , ref , ref ; - , ref ; ▪, ref ; ◇, ref , ref ; +, ref , ref ; − , ref . 2 Deviation of literature density ρ of 1-chloropentane from eq 1 as a function of temperature: Δ, this work; □, ref ; ▴, ref ; ×, ref ; *, ref ; ◇, ref ; +, ref ; ○, ref , ref , ref , ref , ref . 3 Deviation of literature density ρ of 1-chlorooctane from eq 1 as a function of temperature: Δ, this work; ▪, ref ; ▴, ref , ref ; ×, ref ; - , ref ; − ...…”
The densities of 1-chlorobutane, 1-chloropentane, 1-chloroheptane, 1-chlorooctane, 1-chlorodecane, and 1-chlorotetradecane have been measured within the temperature range from (253.15 to 423.15) K. The experimental results were used to calculate the isobaric thermal expansion coefficient R p .
“…The isentropic compressibility of pure methanol and 1-butanol at room temperature are K M ¼ 10:446 Â 10 À10 Pa À1 [36] and K B ¼ 8:082 Â 10 À10 Pa À1 [37], respectively. The isentropic compressibility of the mixture can be calculated by a simple linear combination [36,37],…”
Section: Longitudinal Mode and Spikes On The Resonant Frequency Shiftmentioning
a b s t r a c tTheoretical and experimental investigations are presented for the precision measurement of evaporation kinetics of binary mixtures using a quartz crystal resonator. A thin layer of light alcohol mixture including a volatile (methanol) and a much less volatile (1-butanol) components is deployed on top of a crystal resonator for the evaporation experiment. A one-dimensional theoretical model is developed to describe the underlying mass transfer and interfacial transport phenomena. Along with the theoretical analysis, the transient evaporation kinetics, moving interface, and the stratification of viscosity of the liquid mixture during evaporation can be simultaneously measured by the impedance response of the shear and longitudinal waves emitted from the resonator. The result on the binary mixture presents a simplified model system for further investigations of complicated evaporation kinetics involving complex fluids or multi-component fuel systems.
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