How can chemical engineers utilize theoretical frameworks to optimize processes, design efficient systems, and develop novel materials? Explore how principles from thermodynamics, kinetics, transport phenomena, and reaction engineering form the theoretical foundation for understanding and manipulating chemical reactions and processes. Investigate the role of computational methods and mathematical modeling in predicting system behavior and optimizing process parameters. Additionally, discuss the importance of integrating theoretical knowledge with experimental data to validate models and enhance process design. How does this interdisciplinary approach empower chemical engineers to tackle complex challenges in fields ranging from pharmaceuticals and energy to environmental remediation?