Here are five important questions related to chemical engineering that can be helpful for exams:

1. What is the difference between a batch reactor and a continuous-flow reactor? Discuss their advantages and disadvantages.

2. Explain the concept of material and energy balance in chemical processes. How are these balances applied in industrial settings?

3. Describe the principles and applications of distillation in chemical engineering. Discuss the factors that influence the efficiency of a distillation column.

4. What are the different types of heat exchangers used in chemical processes? Compare and contrast their working principles, advantages, and limitations.

5. Discuss the significance of reaction kinetics in chemical engineering. Explain the concepts of reaction rate, order, and activation energy, and their role in designing and optimizing chemical reactors.