Exploring fundamental theories in chemical engineering beyond Ohm's law is pivotal for comprehending the discipline's core principles. Key theories encompass thermodynamics, mass transfer, reaction kinetics, and process control. Thermodynamics investigates energy transfer and conversion in chemical processes, while mass transfer explores the movement of substances within systems. Reaction kinetics focuses on the rates of chemical reactions, and process control oversees the optimization of industrial processes. These theories form the foundation of chemical engineering, guiding the design and operation of various industrial processes.