How do chemical engineers apply theoretical principles in their field? Explore the foundational theories that underpin chemical engineering practices, including thermodynamics, fluid mechanics, mass and heat transfer, and reaction kinetics. Investigate how these theories inform the design, optimization, and operation of chemical processes, from industrial$-$scale manufacturing to environmental remediation. Consider the role of computational modeling and simulation in refining theoretical frameworks and solving complex engineering problems. Additionally, analyze the interdisciplinary nature of chemical engineering, integrating principles from chemistry, physics, mathematics, and biology to develop innovative solutions for societal challenges in energy, healthcare, materials, and beyond.