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Wyszukujesz frazę "ultrasonic velocity" wg kryterium: Temat

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    Wyświetlanie 1-9 z 9
    Tytuł:
    Studies of densities, viscosities and ultrasonic speeds of binary mixtures containing isopropyl alcohol and ketones at different temperatures
    Autorzy:
    Srinivas, S. S. J.
    Tulasi Koteswari Bai, B.
    Babu Rao, K.
    Narendra, K.
    Sarath Babu, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/412144.pdf
    Data publikacji:
    2013
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    ultrasonic velocity
    density
    viscosity
    acoustic parameters
    Opis:
    The densities, viscosities and ultrasonic velocities of binary liquid mixtures of Isopropyl alcohol with acetophenone and methyl isobutyl ketone (MIBK) have been measured at temperatures 298.15 and 308.15 K over the entire range of mole fraction. From these data, acoustical parameters such as adiabatic compressibility (β), free volume (Vf) and free length (Lf) have been estimated using the standard relations. The results are interpreted in terms of molecular interactions present in the mixtures.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2013, 10, 2; 151-158
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Triazolo derivatives: Synthesis and ultrasonic behaviour in DMF and DMSO solutions over a wide range of temperatures
    Autorzy:
    Baluja, Shipra
    Pithiya, Mona
    Hirapara, Asmita
    Lava, Divyata
    Powiązania:
    https://bibliotekanauki.pl/articles/1158749.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    DMF
    DMSO
    Triazole
    acoustical parameters
    ultrasonic velocity
    Opis:
    Ultrasonic velocity, density and viscosity of two new triazolo derivatives were measured in DMF and DMSO over a range of temperatures. From these measured experimental data, various acoustical parameters were calculated to understand the molecular interactions occurring in the solution.
    Źródło:
    World Scientific News; 2018, 114; 177-194
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Theoretical ultrasonic velocities in binary liquid mixture containing aniline and anisole at different temperatures – a comparative study
    Autorzy:
    Sreedevi, Y.
    Srinivasu, Ch.
    Fakruddin, Sk.
    Narendra, K.
    Venkateswara Rao, B.R.
    Nirmal Rajeev, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/412398.pdf
    Data publikacji:
    2013
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    ultrasonic velocity
    aniline
    anisole
    binary liquid mixtures
    Opis:
    Ultrasonic velocity is measured experimentally at 3MHz frequency in the binary liquid mixture containing aniline and anisole at different temperatures over the entire composition range and theoretical values of ultrasonic velocity have been evaluated by using Nomoto’s relation, Impedance relation, Van Dael ideal mixture relation. These theoretical values are compared with the experimental values. A good agreement has been found between experimental and theoretical ultrasonic velocities.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2013, 7, 2; 120-124
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Acoustical studies of binary liquid mixtures of p-chlorotoluene in benzene at different temperatures
    Autorzy:
    Kumar, G. P.
    Babu, Ch. P.
    Samatha, K
    Jyosthna, A. N.
    Showrilu, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/412275.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    ultrasonic velocity
    thermodynamic parameters
    p-chlorotoluene
    molecular interactions
    Opis:
    Ultrasonic velocities (U), densities (ρ), and coefficient of viscosities (η) are measured for binary mixtures containing (i) p-chlorotoluene and (ii) benzene at 303.15 K, 308.15 K, 313.15 K and 318.15 K to understand the molecular interaction. Various acoustical parameters such as adiabatic compressibility (βad), free length (Lf), acoustic impedance (Z), free volume (Vf), molar volume (Vm), Rao’s constant (R), Wada’s constant (W) and internal pressure (πi), are calculated from the measured values of U, ρ, and η. The trend in acoustical parameters also substantiates to asses strong molecular interactions.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2014, 10; 25-37
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Acoustical studies of some synthesized Schiff base derivatives in dimethylsulphoxide at 303.15 K, by ultrasonic velocity measurement
    Autorzy:
    Gopi, C.
    Santhi, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/412151.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    density
    viscosity
    ultrasonic velocity
    DMSO
    acoustical parameters
    molecular interactions
    Opis:
    The density, viscosity and sound velocity of five Schiff bases (1-5) derivatives in DMSO solutions have been studied at 303.15 K over a wide range of concentration. From these experimental data, some acoustical parameters such as Molar volume (Vm), Specific Acoustic Impedance (Z), Adiabatic compressibility (βad), Intermolecular Free Length (Lf), Rao’s Constant (R), Molar compressibility (W), Relaxation time(τ), van der Waals constant (b), Relaxation strength (r), Relative association (RA), Isothermal compressibility (βT ) , Isothermal expansion co-efficient (α) ,Free volume (Vf) and Internal pressure (πi) and Ultrasonic attenuation (α/f²) have been evaluated. A fairly good correlation between a given parameter and concentration is observed. The results are interpreted in terms of molecular interactions like solvent-solvent, solvent-solute and solute-solute interactions.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2014, 17, 1; 50-66
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ultrasonic velocity, density and viscosity measurement of pyrimidine derivatives in 1,4-dioxane and DMF at various temperatures
    Autorzy:
    Baluja, Shipra
    Nandha, Kajal
    Ramavat, Paras
    Powiązania:
    https://bibliotekanauki.pl/articles/1190220.pdf
    Data publikacji:
    2016
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Pyrimidine derivatives
    ultrasonic velocity
    viscometry
    molecular interaction
    apparent molar compressibility
    Opis:
    The estimation of density, viscosity and ultrasonic velocity of solution of pyrimidine derivatives in 1,4-dioxane and N,N-dimethylformamide was carried out as functions of concentration (0.01 to 0.1 M) and temperature (298.15 to 318.15 K). Some acoustical and apparent parameters such as acoustical impedance (Z), intermolecular free length (Lf), adiabatic compressibility (κs), molar compressibility (W), Vander Waals constant (b), relaxation strength (r), internal pressure (π), apparent molar compressibility (fk), apparent molar volume (fv) etc., have been evaluated using experimental data of ultrasonic velocity (U), density (ρ) and viscosity (η). The characterization of these synthesized compounds was done by IR, 1H NMR and mass spectral data.
    Źródło:
    World Scientific News; 2016, 44; 257-278
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Theoretical evaluation of ultrasonic velocities in binary liquid mixtures at different temperatures
    Autorzy:
    Bhavani, M.D.
    Ratnakar, A.
    Kavitha, Ch.
    Powiązania:
    https://bibliotekanauki.pl/articles/411591.pdf
    Data publikacji:
    2013
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    binary liquid mixtures
    o-anisidene
    o-cresol
    Nomoto
    ultrasonic velocity
    Opis:
    Ultrasonic velocities calculated from various theories and relations like Nomoto's relation, Van dael ideal mixing relation, Impedance relation, Rao's specific velocity relation and Jungie's theory are compared with experimental values in binary liquid mixtures o-anisidine with o-cresol at temperatures 303.15, 308.15, 313.15 and 318.15 K over the entire mole fraction range. The relative applicability of these theories to the present system is checked and discussed. A good agreement is observed between experimental and theoretical values. The results are explained in the light of molecular interactions occuring in these mixtures.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2013, 5; 1-6
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Acoustical studies on molecular interaction of 1,3,4-pyrazoline derivatives using ultrasonic technique at 303.15 K
    Autorzy:
    Santhi, A. R. N.
    Powiązania:
    https://bibliotekanauki.pl/articles/412461.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Binary mixture
    molecular interaction
    ultrasonic velocity
    density
    viscosity
    free length
    Opis:
    The acoustical parameters for the binary liquid mixtures containing Pyrazoline derivatives in DMF have been estimated at 303.15 K, from the measured values of ultrasonic velocity (U), density (ρ) and viscosity (η). From these data some of acoustical parameters such as adiabatic compressibility (β), free length (Lf), acoustic impedance (Z), Rao’s constant (R), molar compressibility (W), relaxation time (τ), free volume (Vf) and internal pressure (πi), etc., have been computed using the standard relations. The results have been discussed in terms of molecular interactions.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2014, 20, 1; 100-115
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Study of acoustical parameters in binary liquid mixture containing 1-butanol and hexane at temperatures 313.15 K, 318.15 K and 323.15 K
    Autorzy:
    Srinivasu, C. H.
    Kumar, A. K.
    Fakruddin, S. K.
    Narendra, K.
    Anjaneyulu, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/412551.pdf
    Data publikacji:
    2013
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    density
    ultrasonic velocity
    viscosity
    1-butanol
    hexane
    adiabatic compressibility
    free length and molar volume
    Opis:
    The values of ultrasonic velocity (u), density (ρ), and viscosity (η) have been measured experimentally in the binary liquid mixture containing 1-butanol and hexane over the entire range of composition at different temperatures 313.15 K, 318.15 K and 323.15 K. This experimental data have been used to calculate the acoustical parameters such as adiabatic compressibility (β), free length (Lf), molar volume (Vm) and acoustic impedance(z). The results have been qualitatively used to explain the molecular interactions between the components of the liquid mixture.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2013, 13; 1-7
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

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