Choose the right one.

1. How does the catalyst affect the heat of reaction? Explain. (a) It makes it more exothermic (b) It makes it more endothermic (c) It has no effect (e) It depends on the specific reaction

2. How can you increase the U value of a reactor? Explain. (a) Increase the heat transfer area (b) Use a less conductive reactor wall material (c) Improve mixing of the reaction liquid (d) Operate in a semi-batch reactor

3. The operation with a large temperature difference between the reactor and the liquid heat transfer can provide which advantage? Explain. (a) Increases mixing (b) Reduces build-up of unwanted material on equipment (c) It increases selectivity (d) It increases the rate of heat transfer