Study of Thermo Excess Acoustical Parameters in Binary Liquid Mixtures of Aniline with Toluene at Four Different Temperatures

Thermo excess acoustical parameters, including excess internal pressure (πE), excess enthalpy (HE), and excess free volume (VfE), have been derived from experimentally measured densities (ρ), ultrasonic velocities (u), and viscosities (η) in binary liquid mixtures of aniline with toluene across temperatures of 303.15, 308.15, 313.15, and 318.15 K. These parameters were fitted using the Redlich-Kister polynomial equation. The results highlight the significance of intermolecular interactions in these mixtures, providing insights into their thermodynamic behavior and potential applications in chemical processes. Comprehensive analysis of these parameters aids in understanding molecular interactions and structural effects within the mixtures.