Harmonizing Molecular Mysteries: A Comprehensive Review of Ultrasonic, Acoustic, and Volumetric Studies in Complex Solutions

¹ Departement of Physics, Lovely Professional University, Phagwara, 144401, Punjab, India.
² Central Instrumentation Facility, Division of Research & Development, Lovely Professional University, Phagwara, 144401, Punjab, India.

^* Corresponding author: nabaparnac@gmail.com

Abstract

Understanding non-ideal mixtures of liquids and gases in thermodynamics is paramount for processes marked by significant entropy changes. This article delves into the pivotal role of ultrasonic and acoustic studies in unraveling the intricate behaviour of complex solutions. These studies provide profound insights into molecular interactions, structural properties, and thermodynamic characteristics. Notably, they find widespread applications in diverse industries, including pharmaceuticals, food processing, clinical analysis, and petroleum engineering. This qualitative exploration sheds light on the underlying molecular forces, particularly the influence of hydrogen bonding. Recent advancements in the field, such as the investigation of ionic liquids combined with molecular solvents and the analysis of volumetric and acoustic properties in binary mixtures, underscore their practical importance. This overview offers a comprehensive understanding of how ultrasonic and acoustic studies drive progress in multiple sectors. They play a pivotal role in enhancing the stability of drug formulations, optimizing food-grade mixtures, and ensuring strict compliance with industry standards in the petrochemical sector.