Thermo-Acoustical Study of Biologically Active 1,1’-Bis(3-Methyl-4-Carboxyethylphenoxy) Cyclohexane at Four Different Temperatures

Dhaduk, Bhavin. B.; Parsania, Parsotam H.

doi:10.18052/www.scipress.com/ILCPA.47.1

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Thermo-Acoustical Study of Biologically Active 1,1’-Bis(3-Methyl-4-Carboxyethylphenoxy) Cyclohexane at Four Different Temperatures

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Abstract:

Density (ρ), viscosity (η), ultrasonic speed (U), and thermo-acoustical parameters such as specific acoustical impedance (Z), adiabatic compressibility (κ_a), internal pressure (π), free volume (V_f), inter molecular free path length (L_f), Van der Waals constant (b), viscous relaxation time (τ), classical absorption coefficient (α/f²)_cl, Rao’s molar sound function (R_m), solvation number (S_n), Gibbs free energy of activation (ΔG*), enthalpy of activation (ΔH*) and entropy of activation (ΔS*) of biologically active 1,1’-bis (3-methyl-4-carboxyethylphenoxy) cyclohexane (BMCPC) in 1,4-dioxane (DO), ethyl acetate (EA), tetrahydrofuran (THF) have been studied at four different temperatures: 298, 303, 308 and 313 K to understand the molecular interactions in the solutions. A good to excellent correlation between a given parameter and concentration is observed at all temperatures and solvent systems studied. Linear increase or decrease [except (α/f²)_cl ] of acoustical parameters with concentration and temperature indicated the existence of strong molecular interactions. ΔG* decreased linearly with increasing concentration and temperature in DO and EA systems and increased with temperature in THF system. ΔH* and ΔS* are found practically concentration independent in case of DO and EA system but both are found concentration dependent in THF system.

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Periodical:

International Letters of Chemistry, Physics and Astronomy (Volume 47)

Pages:

1-14

DOI:

https://doi.org/10.18052/www.scipress.com/ILCPA.47.1

Citation:

B. B. Dhaduk and P. H. Parsania, "Thermo-Acoustical Study of Biologically Active 1,1’-Bis(3-Methyl-4-Carboxyethylphenoxy) Cyclohexane at Four Different Temperatures", International Letters of Chemistry, Physics and Astronomy, Vol. 47, pp. 1-14, 2015

Online since:

February 2015

Authors:

Bhavin. B. Dhaduk, Parsotam H. Parsania

Keywords:

Acoustical Parameters, Thermodynamic Parameters, Ultrasonic Speed

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Creative Commons Attribution 4.0 International License

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Cited By:

[1] B. Dhaduk, C. Patel, P. Parsania, "Ultrasonic Speed and Related Thermo-acoustical Parameters of Solutions of 1,1′-Bis(3-methyl-4-ethoxyacetylphenoxy)cyclohexane at Four Different Temperatures", Journal of Solution Chemistry, Vol. 44, p. 1976, 2015

DOI: https://doi.org/10.1007/s10953-015-0389-y

[2] B. Dhaduk, C. Patel, P. Parsania, "Molecular Interactions in 1,4-Dioxane, Tetrahydrofuran, and Ethyl Acetate Solutions of 1,1′-Bis(4-isopropyloxyacetylphenoxy)cyclohexane on Reological, Density, and Acoustic Behavior", Russian Journal of Physical Chemistry A, Vol. 91, p. 2495, 2017

DOI: https://doi.org/10.1134/S0036024417130052