$2141$ What are the foundational theoretical principles in chemical engineering that drive innovation and development? Explore core theories such as thermodynamics, reaction kinetics, transport phenomena, and process control, and their applications in designing and optimizing chemical processes. Delve into their significance across various industries, including pharmaceuticals, petrochemicals, environmental engineering, and food processing. Additionally, discuss the role of computational modeling, simulation techniques, and experimental validation in advancing theoretical understanding and practical implementation within chemical engineering disciplines.