"How does the concept of chemical equilibrium apply in industrial processes, and what factors influence the equilibrium position? Discuss the principles behind common separation techniques like distillation, absorption$,$ and extraction, and their applications in chemical engineering. How do catalysts affect reaction rates and selectivity in catalytic processes? Explain the significance of fluid mechanics in chemical engineering, highlighting the role of viscosity, flow patterns, and pressure in designing efficient systems. Analyze the principles of heat transfer and their application in reactor design and process optimization."