MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Reaction Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Decrease in inerts for an endothermic reaction ____ |
| A. | Increases conversion |
| B. | Decreases conversion |
| C. | Has no effect on conversion |
| D. | Initially increases and then decreases conversion |
| Answer» C. Has no effect on conversion | |
| 2. |
The point of intersection of energy balance and material balance curves for exothermic irreversible reactions, wherein instability is witnessed is stated as ____ |
| A. | Pour point |
| B. | Boiling point |
| C. | Flash point |
| D. | Ignition point |
| Answer» E. | |
| 3. |
The conversion achieved for the liquid phase reaction occurring in an adiabatic PFR with a heat of reaction -100 kJ/molK, specific heat of the stream being 100 J / molK and the temperature difference being 800K is ___ |
| A. | 0.65 |
| B. | 0.75 |
| C. | 0.90 |
| D. | 0.80 |
| Answer» E. | |
| 4. |
A liquid phase reaction occurring in adiabatic PFR has a heat of reaction -120000 J/molK. Specific heat of the stream is 10000 J / molK. The temperature difference for complete conversion to be achieved is ___ |
| A. | 560 K |
| B. | 8.33 K |
| C. | 12 K |
| D. | 83.33K |
| Answer» D. 83.33K | |
| 5. |
Which of the following reactors is used for large ( frac{C_p}{-H_R} )? |
| A. | CSTR |
| B. | PFR |
| C. | Photocatalytic reactor |
| D. | Membrane reactor |
| Answer» C. Photocatalytic reactor | |
| 6. |
State true or false.For exothermic reactions with large temperature drop, PFR is used. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
State true or false.An exothermic reaction approaches isothermal conditions by increasing the addition of inerts to the reaction mixture. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Which of the following correctly relates conversion to the heat of adiabatic reaction? |
| A. | C<sub>p</sub> T(- H<sub>R</sub>) = X<sub>A</sub> |
| B. | ( frac{C_p}{-H_R} ) = X<sub>A</sub> |
| C. | ( frac{C_p T}{-H_R} ) = X<sub>A</sub> |
| D. | ( frac{-H_R C_p}{ T} ) = X<sub>A</sub> |
| Answer» D. ( frac{-H_R C_p}{ T} ) = X<sub>A</sub> | |
| 9. |
The optimum temperature progression for exothermic reversible reaction is ____ |
| A. | The locus of maximum rates |
| B. | Highest allowable temperature |
| C. | The isothermal path |
| D. | Lowest allowable temperature |
| Answer» B. Highest allowable temperature | |
| 10. |
Increase in temperature for an endothermic reaction ____ |
| A. | Decreases equilibrium conversion |
| B. | Increases equilibrium conversion |
| C. | Does not affect equilibrium conversion |
| D. | Initially decreases and then increases equilibrium conversion |
| Answer» C. Does not affect equilibrium conversion | |