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Dash, Upendra N.
- Evaluation of Thermo-Acoustical Parameters of Strong Electrolytesmetal Sulphates in Aqueous Medium at Different Temperatures
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Authors
Affiliations
1 P.G Department of Physics, Ravenshaw University, Cuttack, Odisha-753003, IN
2 Plot No. 436, Chakeisihani, Bhubaneswar, Odisha-751010, IN
1 P.G Department of Physics, Ravenshaw University, Cuttack, Odisha-753003, IN
2 Plot No. 436, Chakeisihani, Bhubaneswar, Odisha-751010, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 38, No 1 (2016), Pagination: 14-22Abstract
Values of ultrasonic velocity (U), density (d) and viscosity (η) have been measured in aqueous solutions of zinc sulphate and magnesium sulphate in different concentrations over the temperature range 298.15K to 313.15K at 5K interval. The thermo-acoustical parameters, such as acoustic impedance (Z), isentropic compressibility (Ks), apparent isentropic compressibility (Ks,φ), intermolecular free length (Lf), relative association (RA), relaxation time (τ), Gibb's free energy change (ΔG), solvation number (Sn), ultrasonic attenuation (α/f2), internal pressure (πi) and free volume (Vf) have been computed to assess the ion-solvent and ion-ion interactions in these solutions. It is found that the ion-solvent and ion-ion interactions depend on concentration, temperature, ionic size, ionic field strength and nature of the ion. The structural arrangement of molecules in electrolyte solutions has been discussed on the basis of electrostatic field (ionic field) of ion. The qualitative intermolecular elastic forces between the solute and solvent molecules are explained in terms of compressibility. The variation of solvation number with respect to temperature and concentration of electrolyte solution has been explained in the light of dipolar interaction between solute and solvent.Keywords
Isentropic Compressibility, Internal Pressure, Solvation Number, Ultrasonic Attenuation, Free Volume.Full Text
- Thermo-Acoustical Study of Strong Electrolytes-Metal Chlorides in Aqueous Acetone Media at Different Temperatures
Abstract Views :197 |
PDF Views:8
Authors
Affiliations
1 Department of Physics, DRIEMS, Cuttack-754022, IN
2 PG Department of Physics, Ravenshaw University, Cuttack-753003,, IN
3 Plot No.436, Chakeisihani, Bhubaneswar-751010, IN
1 Department of Physics, DRIEMS, Cuttack-754022, IN
2 PG Department of Physics, Ravenshaw University, Cuttack-753003,, IN
3 Plot No.436, Chakeisihani, Bhubaneswar-751010, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 39, No 1 (2017), Pagination: 8-12Abstract
The ultrasonic velocity, density and viscosity measurements have been made on strong electrolytes like strontium chloride, cadmium chloride and barium chloridein 5, 10 and 15 wt% of aqueous acetone solvent systems in different concentrations over the temperature range 298.15K to 313.15K at 5K interval. From the experimental data, various thermo-acoustical parameters, such as acoustic impedance, isentropic compressibility, intermolecular free length, relaxation time, Gibb's free energy change, ultrasonic attenuation, internal pressure, and free volume have been computed to investigate the ion-solvent and solvent-solvent interactions in these systems. It is observed that the ion-solvent and solvent-solvent interactions depend on concentration, temperature, ionic size and nature of the electrolyte. The structural arrangement of molecules in electrolyte solutions has been discussed on the basis of electrostatic field. The qualitative intermolecular elastic forces between the solute and solvent molecules are explained in terms of compressibility.Keywords
Acoustic Impedance, Internal Pressure, Relaxation Time, Ultrasonic Attenuation, Gibb's Free Energy.Full Text
References
- Nithiyanantham S. and Palaniappan L., Acoustical studies on some disaccharides (sucrose, lactose, maltose) in aqueous media at room temperature, Metals Mat. Proces., 20 (2008) 203-208.
- Dash U.N., Roy G.S. and Mohanty S., Ultrasonic studies on sodium thiosulphate and ammonium thiosulphate in water and water + acetone mixtures, Indian J. Chem. Technol., 11 (2004) 178-184.
- Ravichandran S. and Ramanathan K., Ultrasonic investigations of MnSO4, NiSO4 and CuSO4 aqueous in polyvinyl alcohol solution at 303K, Rasayan J. Chem., 3 (2010) 375-384.
- Swain B., Mishra R.N. and Dash U.N., Ultrasonic studies on molecular interactionsinstrong electrolytes-Metal chlorides in aqueous medium at different temperatures and 2MHz frequency, Int. J. Adv. Res., 4 (2016) 427-439.
- Moharatha D., Talukdar M., Roy G.S. and Dash U.N., Evaluation of acoustic parameters of halides of alkali metals and ammonium in aqueous and aqueous dextran solutions at 298.15K, Researcher, 3 (2011) 6-12.
- Das S. and Dash U.N., Evaluation of thermo-acoustic and non-linearity parameter (B/A) of glycine, α-alanine, β-alanine and phenyl Alanine in D-fructose solutions at 298.15K, Int. J. Pharm. Sci. Rev. Res., 21 (2013) 212220.
- Dash U.N. and Sahu R., Ultrasonic studies on ammonium salts in aqueous ethereal solvent systems, Acoust. Lett., 17 (1994) 157-164.
- Malasane P.R., Study of Interactions of tryptophan through acoustic and thermodynamic properties, Res. J. Chem. Sci., 3 (2013) 73-77.
- Roy M.N., Bhattacharjee A. and Chanda R., Molecular interactions of selected amino acids in aqueous resorcinol solutions: volumetric, viscometric and acoustic studies, Indian J. Sci. Technol., 2 (2009) 63-72.
- Palani R. and Jayachitra K., Ultrasonic studies in ternary electrolytic mixtures at 303, 308 and 313K, Indian J. Pure Appl. Phys., 46 (2008) 251-254.
- Kanhekar S.R., Pravina P. and Govind K.B., Thermodynamic properties ofelectrolytes in aqueous solution of glycine at different temperatures, Indian J. Pure Appl. Phys., 48 (2010) 95-99.
- Mehra R. and Vats S., Viscometric, volumetric and thermoacoustic behaviour of amino acids in urea (aq), Int. J. Adv. Res., 2 (2014) 141-157.
- Ali A., Hyder S. and Nain A.K., Intermolecular interactions in ternary liquid mixtures by ultrasonic velocity measurements, Indian J. Phys. B, 74 (2000) 6367.
- Wadekar M.P., Thermo acoustical molecular interaction study of azomethine and its Fe(III) metal complex using ultrasonic technique, J. Chem. Pharm. Res., 5 (2013) 3741.
- Fort R.J. and Moore W.R., Adiabatic compressibilities of binary liquid mixtures, Trans. Faraday Soc., 61 (1965) 2102-2111.
- Syal V.K., Chauhan S. and Gautam R., Ultrasonic velocity measurements of carbohydrates in binary mixtures of DMSO + H2O at 25±C, Ultrasonics, 36 (1998) 619-623.
- Ultrasonic Investigations of Metal Chlorides in Aqueous Ethanol Systems
Abstract Views :182 |
PDF Views:0
Authors
Affiliations
1 Department of Physics, DRIEMS, Cuttack-754022, IN
2 PG Department of Physics, Ravenshaw University, Cuttack-753003, IN
3 Plot No.436, Chakeisihani, Bhubaneshwar-751010, IN
1 Department of Physics, DRIEMS, Cuttack-754022, IN
2 PG Department of Physics, Ravenshaw University, Cuttack-753003, IN
3 Plot No.436, Chakeisihani, Bhubaneshwar-751010, IN
Source
Journal of Pure and Applied Ultrasonics, Vol 40, No 3 (2018), Pagination: 73-79Abstract
The density (d), ultrasonic velocity (U) and viscosity (?) measurements have been carried out for strong electrolytes, e.g., magnesium chloride and zinc chloride in 5, 10 and 15 wt% of aqueous ethanol in different concentrations over the temperature range 298.15K to 313.15K at 5K interval. Various thermo-acoustical parameters, such as free volume (Vf), internal pressure (πi), relaxation time (τ), Gibb's free energy change (ΔG), ultrasonic attenuation (α/f2) and van der Walls constant (b) have been computed from the experimental data to investigate the ion-solvent and solvent-solvent interactions in these systems. The variation of these parameters has been discussed and interpreted in the light of molecular interaction and hydrogen bonding in the solutions.Keywords
Free Volume, Relaxation Time, Gibb's Free Energy Change, Ultrasonic Attenuation.Full Text
References
- Nithiyanantham S. and Palaniappan L., Acoustical studies on some disaccharides (sucrose, lactose, maltose) in aqueous media at room temperature, Metals Mate. Proces., 20 (2008) 203-208.
- Palaniappan L. and Karthikeyan V., Study of acoustical parameters of binary liquid mixtures at 298K Ind. J. Phys., 79 (2005) 155.
- Ravichandran S. and Ramanathan K., Ultrasonic investigations of MnSO4, NiSO4 and CuSO4 aqueous in polyvinyl alcohol solution at 303K, Rasayan J. Chem., 3 (2010) 375-384.
- Kannappan V. and Jaya Santhi R., Ultrasonic studies of isomeric butyl alcohol in aqueous solutions, Indian J. Pure & Appl. Phys., 43 (2005) 167-171.
- Swain B., Mishra R.N. and Dash U.N., Ultrasonic studies on molecular interactions in strong electrolytes-Metal chlorides in aqueous medium at different temperatures and 2 MHz frequency, Int. J. Adv. Res., 4 (2016) 427-439.
- Robinson R.A. and Stokes R.H., Electrolyte Solutions, Butterworth's Scientific Publication, London, (1955) 30.
- Swain B., Mishra R.N. and Dash U.N., Volumetric study of strong electrolytes-metal chlorides and metal sulphates in aqueous medium at different temperatures, J. Chem. Pharm. Res., 7 (2015) 140-144.
- Swain B., Mishra R.N. and Dash U.N., Viscometric and thermodynamic studies on strong electrolytes - Metal chlorides and metal sulphates in aqueous medium at different temperatures, Int. J. Chem. Phys. Sci., 4 (2015) 66-76.
- Eyring H. and Kincaid J.F., Free volume and free angle ratio of molecules in liquid, J. Chem. Phys., 6 (1938) 620.
- Suryanarayan C.V., Internal pressure and free volumeThe key parameters in characterizing liquids and electrolyte solutions, J. Acoust. Soc. Ind., 7 (1979) 131.
- Talukdar M., Moharatha D., Roy G.S. and Dash U.N., Acoustic and ultrasonic studies of alkali metals and ammonium halides in chitosan solutions at four different temperatures, Indian J. Pure & Appl. Phys., 51 (2013) 202-206.
- Das S. and Dash U.N., Evaluation of thermo-acoustic and non-linearity parameter (B/A) of Glycine, -alanine, ?alanine and phenyl alanine in D-fructose solutions at 298.15K, Int. J. Pharm. Sci. Rev. Res., 21 (2013) 212-220.
- Palani R. and Balakrishnan S., Acoustical properties of ternary mixtures of 1-alkanols in di-isopropyl ether and 2, 2, 2-trifluoroethanol mixed solvent, Indian J. Pure & Appl. Phys., 48 (2010) 644-650.
- Ali A. and Nain A.K., Study of molecular interactions in non aqueous binary liquid mixtures through ultrasonic measurements, J. Pure Appl. Ultrason., 22 (2000) 10.
- Dash U.N. and Sahu R., Ultrasonic studies on ammonium salts in aqueous ethereal solvent systems, Acoustics Lett., 17 (1994) 157-164.
- Malasane P.R., Study of Interactions of Tryptophan through Acoustic and Thermodynamic Properties, Res. J. Chem. Sci., 3 (2013) 73-77.
- Roy M.N., Bhattacharjee A. and Chanda R., Molecular interactions of selected amino acids in aqueous resorcinol solutions: volumetric, viscometric and acoustic studies, Indian J. Sci. Technol., 2 (2009) 63-72.
- Syal V.K., Chauhan S. and Gautam R., Ultrasonic velocity measurements of carbohydrates in binary mixtures of DMSO + H2O at 25°C, Ultrasonics, 36 (1998) 619-623.
- Mehra R. and Vats S., Viscometric, volumetric and thermoacoustic behaviour of amino acids in Urea (aq), Int. J. Adv. Res., 2 (2014) 141-157.
- Ali A., Hyder S. and Nain A.K., Intermolecular interactions in ternary liquid mixtures by ultrasonic velocity measure-ments, Indian J. Phys. B, 74 (2000) 63-67.
- Wadekar M.P., Thermo acoustical molecular interaction study of azomethine and its Fe(III) metal complex using ultrasonic technique, J. Chem. Pharm. Res., 5 (2013) 37-41.
- Fort R.J. and Moore W.R., Adiabatic compressibilities of binary liquid mixtures, Trans. Faraday Soc., 61 (1965) 102-111.