Journal of Pure and Applied Ultrasonics

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Thermo-Acoustical Study of Strong Electrolytes-Metal Chlorides in Aqueous Acetone Media at Different Temperatures


Affiliations
1 Department of Physics, DRIEMS, Cuttack-754022, India
2 PG Department of Physics, Ravenshaw University, Cuttack-753003,, India
3 Plot No.436, Chakeisihani, Bhubaneswar-751010, India
 

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.
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  • Thermo-Acoustical Study of Strong Electrolytes-Metal Chlorides in Aqueous Acetone Media at Different Temperatures

Abstract Views: 322  |  PDF Views: 8

Authors

Bidyadhar Swain
Department of Physics, DRIEMS, Cuttack-754022, India
Rabindra N. Mishra
PG Department of Physics, Ravenshaw University, Cuttack-753003,, India
Upendra N. Dash
Plot No.436, Chakeisihani, Bhubaneswar-751010, India

Abstract


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.

References