MCQOPTIONS
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MCQOPTIONS
This section includes 409 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 401. |
A catalyst in a chemical reaction _______________ free energy change in the reaction? |
| A. | Increases |
| B. | Decreases |
| C. | Either A. or B.; depends on the type of catalyst |
| D. | Neither A. nor B. |
| Answer» D. Neither A. nor B. | |
| 402. |
A batch reactor is suitable for__________________? |
| A. | Achieving cent percent conversion of reactants into products |
| B. | Large scale gaseous phase reactions |
| C. | Liquid phase reactions |
| D. | Obtaining uniform polymerisation products in highly exothermic reactions |
| Answer» D. Obtaining uniform polymerisation products in highly exothermic reactions | |
| 403. |
A batch reactor is characterised by ____________________? |
| A. | Constant residence time |
| B. | Variation in extent of reaction and properties of the reaction mixture with time |
| C. | Variation in reactor volume |
| D. | Very low conversion |
| Answer» C. Variation in reactor volume | |
| 404. |
A batch reactor suffers from following disadvantage ? |
| A. | Poor product quality control |
| B. | High labour and handling cost |
| C. | High shutdown time requirement for emptying, cleaning and refilling |
| D. | All A., B. and C. |
| Answer» E. | |
| 405. |
A batch reactor is_______________? |
| A. | Suitable for gas-phase reactions on commercial scale |
| B. | Suitable for liquid phase reactions involving small production rate |
| C. | Least expensive to operate for a given rate |
| D. | Most suitable for very large production rate |
| Answer» C. Least expensive to operate for a given rate | |
| 406. |
A batch adiabatic reactor at an initial temperature of 373°K is being used for the reaction, A → B. Assume the heat of reaction is – 1kJ/mole at 373°K and heat capacity of both A and B to be constant and equal to 50J/mole.K. The temperature rise after a conversion of 0.5 will be ____________? |
| A. | 5°C |
| B. | 10°C |
| C. | 20°C |
| D. | 100°C |
| Answer» C. 20°C | |
| 407. |
A balanced chemical reaction equation conforms to the law of________________? |
| A. | Conservation of mass |
| B. | Avogadro’s hypothesis |
| C. | Gaseous volumes |
| D. | None of these |
| Answer» B. Avogadro’s hypothesis | |
| 408. |
A backmix reactor_________________? |
| A. | Is same as plug-flow reactor |
| B. | Is same as ideal stirred tank reactor |
| C. | Employs mixing in axial direction only |
| D. | Is most suitable for gas phase reaction |
| Answer» C. Employs mixing in axial direction only | |
| 409. |
A back mix reactor is___________________? |
| A. | Suitable for gas phase reactions |
| B. | Ideal at very low conversion |
| C. | Same as plug flow reactor (PFR) |
| D. | Same as ideal stirred tank reactor |
| Answer» E. | |