fundamental theories in chemistry, such as thermodynamics, kinetics, and quantum mechanics, form the foundational framework for chemical engineering practices? Explore the integration of these theories into the design and operation of chemical processes, including reaction kinetics, mass and energy balances, and process optimization. Investigate the role of molecular$-$level understanding in the development of new materials, catalysts, and processes. Additionally, analyze how advancements in theoretical chemistry, computational modeling, and experimental techniques contribute to innovations in chemical engineering, addressing challenges in sustainability, efficiency, and safety. Finally, assess the future prospects of theoretical advancements in shaping the field of chemical engineering."