Explore key principles such as mass and energy balances, reaction kinetics, and transport phenomena, highlighting their role in designing and optimizing chemical processes. Discuss the importance of unit operations, such as distillation, reaction vessels, and heat exchangers, in transforming raw materials into valuable products. Investigate the application of chemical engineering principles in fields like pharmaceuticals, petrochemicals, and environmental engineering, addressing challenges related to sustainability and resource efficiency. Provide examples to illustrate how chemical engineers contribute to technological advancements and societal progress.