MCQOPTIONS
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MCQOPTIONS
This section includes 5 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. |
The activation energy of a reaction is 155326 J/ mol. The rate constant of the reaction at and 300K as a function of rate constant at 400K, obtained by the Collision theory is ____ |
| A. | k<sub>1</sub> = 1.5 10<sup>-7</sup>k<sub>2</sub> |
| B. | k<sub>1</sub> = 1.2 10<sup>-6</sup> k<sub>2</sub> |
| C. | k<sub>1</sub> = 1.5 10<sup>-6</sup> k<sub>2</sub> |
| D. | k<sub>1</sub> = 1.2 10<sup>-7</sup> k<sub>2</sub> |
| Answer» B. k<sub>1</sub> = 1.2 10<sup>-6</sup> k<sub>2</sub> | |
| 2. |
If the rate constant of a reaction at 600K is 100 times the rate constant at 500K, then the value of the activation energy obtained by Transition state theory is ____ |
| A. | 120987.12 |
| B. | 167435.15 |
| C. | 110319.28 |
| D. | 156435.54 |
| Answer» D. 156435.54 | |
| 3. |
If the rate constant of a reaction at 275K is 1 min-1 and the rate constant at 300K is 2 min-1, what is the activation energy (in J/ mol) as obtained by Arrhenius law? |
| A. | 24655 |
| B. | 19019.14 |
| C. | 366543.2 |
| D. | 18989.32 |
| Answer» C. 366543.2 | |
| 4. |
The activation energy for a reaction is 122137.5 J/ mol. If the rate constant at 330K is 0.5 min-1, then the value of rate constant (in min-1) at 360K by Arrhenius law is ____ |
| A. | 20.42 |
| B. | 18.65 |
| C. | 30.12 |
| D. | 12.32 |
| Answer» B. 18.65 | |
| 5. |
Which of the following pairing is incorrect? (Where A is the frequency factor) |
| A. | Arrhenius equation; k = A (e^{ frac{-Ea}{RT}} ) |
| B. | Transition state theory; k = AT (e^{ frac{-Ea}{RT}} ) |
| C. | Collision theory; k = AT<sup>0.5</sup> (e^{ frac{-Ea}{RT}} ) |
| D. | Arrhenius equation; k = AT<sup>2</sup> (e^{ frac{-Ea}{RT}} ) |
| Answer» E. | |