{"title":"Thermo-Acoustic Behaviour of K2CrO4 and K4 [Fe(CN)6] in Aqueous\nDimethylformamide at Different Temperatures","authors":"Rajalaxmi Panda, Subhraraj Panda, Susanta Kumar Biswal","doi":"10.2174/0124055204296907240330083154","DOIUrl":null,"url":null,"abstract":"\n\nAcoustic parameters can help us understand how temperature and\nconcentration affect the behaviour of potassium ferrocyanide and potassium chromate electrolytes\nin the aqueous solvent Dimethylformamide.\n\n\n\nThe solution's density (ρ), viscosity (η), and ultrasonic speed (u) were measured\nat various concentrations and temperatures (ranging from 293 K to 313 K) using a pycnometer,\nan Ostwald viscometer, and an ultrasonic interferometer at frequencies of 1MHz,\nrespectively. Based on these measurements, other acoustic parameters were calculated,\nsuch as free length (Lr), internal pressure (πi), adiabatic compressibility (β), acoustic impedance\n(Z), relaxation time (τ), and Gibbs free energy (ΔG).\n\n\n\nThese acoustic and thermodynamic parameters were used to explore various interactions,\nmolecular motion, and interaction modes, as well as their effects, which were influenced\nby the size of the pure component and the mixtures. The analysis showed that\nchanges in temperature and concentration led to specific parameter differences, which affected\nthe interactions between the solute and solvent.\n\n\n\nThis study demonstrated that increasing the concentration of the mixture increased\nthe density, viscosity, and ultrasonic velocity due to the interaction between the\nsolute and solvent, indicating molecular interaction in the mixture.\n","PeriodicalId":20833,"journal":{"name":"Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering)","volume":"8 14","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2174/0124055204296907240330083154","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Acoustic parameters can help us understand how temperature and
concentration affect the behaviour of potassium ferrocyanide and potassium chromate electrolytes
in the aqueous solvent Dimethylformamide.
The solution's density (ρ), viscosity (η), and ultrasonic speed (u) were measured
at various concentrations and temperatures (ranging from 293 K to 313 K) using a pycnometer,
an Ostwald viscometer, and an ultrasonic interferometer at frequencies of 1MHz,
respectively. Based on these measurements, other acoustic parameters were calculated,
such as free length (Lr), internal pressure (πi), adiabatic compressibility (β), acoustic impedance
(Z), relaxation time (τ), and Gibbs free energy (ΔG).
These acoustic and thermodynamic parameters were used to explore various interactions,
molecular motion, and interaction modes, as well as their effects, which were influenced
by the size of the pure component and the mixtures. The analysis showed that
changes in temperature and concentration led to specific parameter differences, which affected
the interactions between the solute and solvent.
This study demonstrated that increasing the concentration of the mixture increased
the density, viscosity, and ultrasonic velocity due to the interaction between the
solute and solvent, indicating molecular interaction in the mixture.