Journal of Pure and Applied Ultrasonics

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Ultrasonic Investigations of Metal Chlorides in Aqueous Ethanol Systems


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

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.
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  • Ultrasonic Investigations of Metal Chlorides in Aqueous Ethanol Systems

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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, Bhubaneshwar-751010, India

Abstract


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.

References