What foundational theories serve as the cornerstone for chemical engineering principles? Explore the theoretical underpinnings that shape the discipline, considering concepts like mass transfer, thermodynamics, reaction kinetics, and fluid mechanics. How do these theories inform the design and optimization of chemical processes, from industrial-scale production to environmental remediation? Delve into the integration of these theoretical frameworks into practical applications, highlighting their significance in advancing technological innovations and addressing contemporary challenges in fields such as energy production, pharmaceuticals, and materials science.