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Mathana Gopal, A.
- Study of Thermodynamic Properties in Binary Liquid Mixtures through Ultrasonic Measurement
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Affiliations
1 Department of Physics, Kamaraj College, Thoothukudi-628003, IN
1 Department of Physics, Kamaraj College, Thoothukudi-628003, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 39, No 4 (2017), Pagination: 122-126Abstract
To understand the intermolecular interactions in organic liquids and liquid mixtures, the study of ultrasonic and thermodynamic parameters are of due importance. Ultrasonic velocity, density and viscosity have been measured experimentally in the two binary mixtures of ethanol and isopropyl alcohol with benzene at different temperature over the entire composition range. The thermodynamic and other allied parameters like free length, internal pressure, enthalpy etc., have been computed and the variation of the excess parameters like excess free volume, excess internal pressure, excess enthalpy, etc., is analyzed in the light of intermolecular interactions in the mixtures. The variation of these parameters as a function of solvent composition has been discussed from the view point of intermolecular interactions present between the unlike molecules. In both the mixtures intermolecular interactions between the constituent molecules are suggested.Keywords
Ultrasonic Velocity, Free Volume, Internal Pressure, Molecular Interactions.Full Text
References
- Padmasree C., Naidu P.S. and Prasad K.R., Ultrasonic behaviour of n-butanol in methyl aceto actetate and ethyl chloro propionate, J. Pure Appl. Ultrason., 17 (1995) 28-32.
- Natarajan S. and Pillai S.O., Free Volume of Sodium chloride solutions in water dimethyl formaides: mixtures from ultrasonic velocity, J. Acoust. Soc. Ind., 7 (1979) 75-79.
- Chandramouli J., Choudary N.V. and Naidu P.R., Thermodynamic properties of binary liquid mixtures involving weak interactions Part 1. Excess volume of binary mixtures of 1-cholrobutane with normal alkanols at 303.15K, Indian J. Pure Appl. Phys., 20 (1982) 755-760.
- Sivaprasad T. and Venkateswarlu, Ultrasonic studies in binary mixtures of butoxy ethyl at 303.15 K temperatures, Acoust. Lett., 18 (1994) 5-10.
- Nagendran S., Poongodi J., Thenappan T. and Sabesan R., Pseudo-Gruneiser parameters for liquids, Indian J. Pure Appl. Phys., 13 (1991) 3-6.
- Nath J. and Dixit A.P., Ultrasonic velocities and adiabatic compressibilities for binary liquid mixtures of acetone with benzene, toluene, p-xylene and mesitylene at 308K, J. Chem. Eng. Data, 29 (1984) 320-324.
- Veerbhadriah D., Rajagopal E. and Manohara N., Excess thermodynamic fluctuation parameters of binary mixtures of benzene, cyclohexane and CCl4 at 198.15K, J. Pure Appl. Ultrason., 19 (1997) 57-63.
- Pandey J.D., Shukla A.K., Tripathi N. and Dubey G.P., Internal pressure, ultrasonic velocity and viscosity of multi-component system, Pramana., 40 (1993) 81-83.
- Naidu P.S., Prabhakararao N. and Prasad K.R., Ultrasonic study and excess thermodynamic parameters of the binary mixtures of 3 methoxy acetophenone and 4 chloroacetophenone containing dimethyl sulphoxide as common component, J. Pure Appl. Ultrason., 24 (2002) 36-39.
- Synthesis and Ultrasonic Characterization of CuO-PVA Nanofluids
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Authors
Affiliations
1 Department of Physics, Kamaraj College (Affiliated to MS University, Tirunelveli), Thoothukudi-628003, Tamilnadu, IN
2 Department of Physics, Scott Christian College, Nagercoli-629003, Tamilnadu, IN
1 Department of Physics, Kamaraj College (Affiliated to MS University, Tirunelveli), Thoothukudi-628003, Tamilnadu, IN
2 Department of Physics, Scott Christian College, Nagercoli-629003, Tamilnadu, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 40, No 2 (2018), Pagination: 39-45Abstract
The molecular properties like transmission of sound in nanofluids undergo changes in highly associated systems and dependent on the cohesive properties of liquids. In the present investigation an attempt is made to calculate the ultrasonic velocity and density of the prepared nanoparticles at different weight percentage with the base fluid Poly Vinyl Alcohol (PVA). Copper oxide (CuO) nanofluid was synthesized by transforming an unstable Cu(OH)2 precursor to CuO in PVA under an ultrasonication. The result shows that CuO-PVA nanofluid can be synthesized using this method. The obtained dried precursor was annealed at 300°C. The annealed sample and the dried precursor were sonicated with an aqueous solution of PVA having concentration 4wt%. For comparison, the synthesized nanoparticles are characterized by X-Ray powder Diffractometry (XRD), Fourier Transform InfraRed Spectroscopy (FTIR), Diffuse Reflectance Spectroscopy (DRS) and analyzed. After ultrasonication UV-Visible Spectroscopy (UV-Vis), Ultrasonic velocity, density and adiabatic compressibility were analyzed and the results were discussed. There is a good agreement between the data produced by ultrasonic spectroscopy and other measurements.Keywords
Nanofluid, Ultrasonication, Ultrasonic Velocity, Density, Adiabatic Compressibility.Full Text
References
- Choi S.U.S., Enhancing thermal conductivity of fluids with nanoparticles, International Mechanical Engineering Congress and exhibition, San Francisco., 1 (1995) 99-105.
- Mishra G., Verma S.K., Singh D., Yadawa P.K. and Yadav R.R., Synthesis and ultrasonic characterization of Cu/PVP nanoparticles-polymer suspensions, J. Acoustics, 1 (2011) 9-14.
- Yu W. and Xie H., A review of nanofluids: preparation, stability mechanisms and applications, J. Nanomaterials, 2012 (2011) 1-17.
- Eastman J.A., Choi S.U.S., Li S., Yu W. and Thompson L., Anomalously increased effective thermal conductivities of ethylene glycol-based nanofluids containing copper nanoparticles, J. Appl. Phys. Lett., 78 (2001) 718-723.
- Lee S., Choi S.U.S., Li S. and Eastman J.A., Measuring thermal conductivity of fluids containing oxide nanoparticles, J. Heat Transfer, 121 (1999) 280-289.
- Liu M.S., Lin M.C.C., Huang I.T. and Wang C.C., Enhancement of thermal conductivity with CuO for nanofluids, Chem. Eng. Technol., 29 (2006) 72-77.
- Wen D. and Ding Y., Effective thermal conductivity of aqueous suspensions of carbon nanotubes (carbon nanotube nanofluids), J. Thermophys. Heat Transfer, 18 (2004) 481-485.
- Kulkarni D.P., Das D.K. and Chukwu G.A., Temperature dependent rheological property of copper oxide nano-particles suspensions, J. Nanosci. Nanotechnol, 6 (2006) 1150-1154.
- Wang B.X., Zhou L.P. and Peng X.F., Mechanism of heat transfer in nanofluids, Prog. Nat. Sci., 14 (2004) 36-41.
- Choi S.U.S. and Eastman J.A. Enhancing thermal conductivity of fluids with nanoparticles, Report No. ANL/MSD/CP-84938, CONF-951135-29 ON : DE 96004174; International Mechanical Engineering Congress & Exhubution San Francisco, CA (USA) 12-17 Nov. 1995. https://ecotert.com/pdf/196525-From_unit=edn.pdf; Accessed on 30/05/2018.
- Zhu H.T., Lin Y.S. and Yin Y.S., A novel one-step method for preparation for copper nanofluids, J. Colloid Interface Sci., 277 (2004) 100-103.
- Zhengping Qiao., Yi Xie., Yingjie Zhu. and Yitan Qian., Synthesis of PbS/polyacrylonitrile nanocomposites at room temperature by Y-radiation, J. Mater. Chem, 9 (1999) 1001-1002.
- Zabihi O. and Ghasemlou S., Nano-CuO epoxy composites: thermal charcterizationa nd thermal oxidative degradation, Int. J. Poly. Analy. Char., 17 (2012) 108-121.
- Pandey V., Mishra G., Verma S.K., Wan M. and Yadav R.R., Synthesis and Ultrasonic investigations of CuO-PVA nanofluid, J. Mater Sci. Appl., 3 (2012) 664-668.
- Mathana Gopal A. and Poongodi J., Study of thermodynamic properties in binary liquid mixtures through ultrasonic measurement, J. Pure Appl. Ultrason., 39(2016) 122-126.
- Estimation of Debye Temperature for Binary Liquid Mixtures using Ultrasonic Techniques
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Authors
Affiliations
1 Department of Physics, Kamaraj College, Tuticorin-628003, IN
2 Department of Physics, Scott Christian College, Nagercoil-629003, IN
3 Affiliated to Manonmaniam Sundaranar University, Tirunelveli-627012, IN
1 Department of Physics, Kamaraj College, Tuticorin-628003, IN
2 Department of Physics, Scott Christian College, Nagercoil-629003, IN
3 Affiliated to Manonmaniam Sundaranar University, Tirunelveli-627012, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 41, No 4 (2019), Pagination: 90-93Abstract
Ultrasonic Velocity Measurements Provide An Important Tool To Study The Liquid State. Such Studies Have Been Used To Understand Intra And Intermolecular Interactions In Pure Liquids, Aqueous Solutions And Binary Mixtures. Detailed Information About The Nature Of Molecular Interactions Can Be Obtained From Various Ultrasonic Parameter Computed. It Has Inspired Many Workers And Extensive Investigations Have Been Carried Out In Both Binary And Ternary Liquid Mixtures Using Various Methods. Acoustic Methods Have Been Applied To Estimate The Effective Debye Temperature (θd) Of Liquid Mixtures (binary). The Theoretical Approach Has Been Completely Modified And A New Approach Has Been Suggested. Binary Liquid Mixtures Have Been Undertaken For Computing The Values Of Effective Debye Temperature Using The Present Approach. There Was A Good Agreement With The Theoretical Values Compared With Standard Findings. The Necessary Experimental Data Needed Have Been Taken From Literature.Keywords
Ultrasonic Velocity, Adiabatic Compressibility, Molar Volume, Debye Temperature.Full Text
References
- Eyring H. and Kincaid J.F., Free volume and free angle ratios of molecules in liquids, J. Chem, Phys, 6 (1938) 620-629.
- Pandey J.D., Ultrasonic propagation parameters and the effective Debye temperature in liquid mixtures, Acoustic Letters, 3 (1970) 90-94.
- Altar W., A study of the liquid state, J. Chem. Phys. 5 (1937) 577-586.
- Eyring H. and Bresler., Viscosity, Plasticity and Diffusion as examples of Absolute reaction rates, J. Chem, Phys., 4 (1936) 283-291.
- Pandey J.D., Effective Debye temperature of and specific heat ratio in liquid methane and pentane, Ind. J. Chem, 14A (1976) 607-608.
- Satendra S., Aruna S. and Shailendra B., Computaion of Effective Debye Temperature (θD) of binary liquid mixtures, Int. J. Res. Pharm Chem., 7(3) (2017) 302-305.
- Pandey J.D., Singh A.K. and Day R., Effects of isotropy on thermo acoustical properties, Ind. J. Pure Appl. Ultrason, 26 (2006) 100-104.
- Pandey J.D., Sanguri V., Mishra R.K. and Singh A.K., Acoustic method for the estimation of effective debye temperature of binary and ternary liquid mixtures, J. Pure Appl. Ultrason, 26 (2004) 18-29.
- Unnamalai K., A Study of Physico Acoustical Parameters in Complexes of alcohols in n-Butyl Acetate, M.Phil. Thesis. Alagappa University, July 1992.