"How does distillation separate components in a mixture based on their boiling points, and what factors influence the efficiency of this process? Explain the concept of heat exchangers in chemical engineering and their role in transferring heat between two or more fluids. Describe the principles of mass transfer in chemical engineering and how they are applied in processes such as absorption$,$ adsorption, and extraction. Discuss the importance of reactor design in chemical engineering and the factors that influence the choice of reactor type for a given reaction."