What theoretical frameworks serve as the foundation for chemical engineering? Chemical engineering relies on principles from physics, chemistry, and mathematics to understand and manipulate processes involving matter and energy. Thermodynamics provides insights into energy transfer and transformation, while fluid mechanics elucidates the behavior of fluids in motion. Kinetics delves into reaction rates and mechanisms, crucial for designing efficient chemical reactors. Transport phenomena elucidate the movement of momentum, heat, and mass in various systems. Quantum mechanics aids in understanding molecular behavior, essential for designing materials and processes at the molecular level. How do these theoretical underpinnings shape the practice and advancements in chemical engineering?