Abstract

This paper reports the densities as well as thespeed of soundL-leucine (0.02 –0.20 mol /kg) in (0.1 mol /kg) aqueous medium of the electrolytes: KCl and NaClat various temperatures (283.15–293.15 K) under atmospheric pressure. Acoustic impedance (Z), free length, isobaric thermal expansion coefficient (α), adiabatic compressibility (β), isothermal compressibility (KT), and specific heat (ϒ), surface tension (σ) using experimental density and speed of sound data, hasbeen computed. The outcomes are illustrated in terms of several electrostatic and hydrophobic interactions associated withthe ternary system of electrolyte, water,and amino acid. A great number of interactions between the electrolyte and L-leucine have been confirmed by electrolyte and temperature. Positive transfer quantities indicate that ion-hydrophilic and hydrophilic-hydrophilic interactions between leucine, sodium chloride, as well as potassium chloride in anaqueous medium, predominate. Overall findings are now explained in terms of solute–solvent as well as solute–solute interactions.

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