Thermodynamics and Transport Phenomena are the foundational pillars of chemical engineering, providing the essential principles for analyzing and designing chemical processes. Thermodynamics deals with energy, equilibrium, and the feasibility of processes, determining whether a reaction will occur or how phases will separate under given conditions. Complementing this, transport phenomena—comprising fluid mechanics, heat transfer, and mass transfer—quantifies the *rate* at which momentum, energy, and chemical species move through a system. Together, these disciplines allow engineers to predict not only the final outcome of a process (the "what" and "how much" from thermodynamics) but also the speed at which it occurs and the equipment size required (the "how fast" from transport phenomena).