MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which theory is the basis for Arrhenius equation? |
| A. | Collision theory |
| B. | Kinetic theory of gases |
| C. | Ideal gas law |
| D. | Charles and Boyles law |
| Answer» C. Ideal gas law | |
| 2. |
For the reaction -rA = \(\frac{1670[A][Po]}{6+CA} \frac{kmol}{ml.hr}\) write the units for constants 6 and 1670. |
| A. | kmol/ml and 1/hr |
| B. | 1/hr and 1/hr |
| C. | kmol and kmol |
| D. | data insufficient |
| Answer» B. 1/hr and 1/hr | |
| 3. |
The reaction rate of a bimolecular reaction at 300K is 10 times the reaction rate at 150K. Calculate the activation energy using collision theory. |
| A. | 4928 J/mol |
| B. | 5164 J/mol |
| C. | 3281 J/mol |
| D. | 1296 J/mol |
| Answer» B. 5164 J/mol | |
| 4. |
Calculate the activation energy for the following data using transition state theory. |
| A. | 30.07 KJ/mol |
| B. | 50.43 KJ/mol |
| C. | 34.37 KJ/mol |
| D. | 82.31 KJ/molView Answer |
| Answer» D. 82.31 KJ/molView Answer | |
| 5. |
Value of m to obtain the collision theory relation for temperature dependency of rate constant is ________ |
| A. | 1 |
| B. | 0 |
| C. | -1 |
| D. | 0.5 |
| Answer» E. | |
| 6. |
Temperature dependence of rate constant according to transition state theory is ______ |
| A. | k=ko\(e^{-\frac{E}{RT}} \) |
| B. | k=\(e^{-\frac{E}{RT}} \) |
| C. | k=koT\(e^{-\frac{E}{RT}} \) |
| D. | k=ko\(e^{-\frac{1}{RT}} \) |
| Answer» D. k=ko\(e^{-\frac{1}{RT}} \) | |
| 7. |
Arrhenius equation to determine the activation energy. |
| A. | ln\((\frac{k1}{k2}) = \frac{E}{R} (\frac{1}{T2}-\frac{1}{T1}) \) |
| B. | ln\((\frac{k1}{k2}) = \frac{E}{R} (\frac{1}{T2}+\frac{1}{T1}) \) |
| C. | ln\((\frac{k1}{k2}) = -\frac{E}{R} (\frac{1}{T2}-\frac{1}{T1}) \) |
| D. | ln\((\frac{k1}{k2}) = \frac{E}{R} (\frac{T1}{T2}) \) |
| Answer» B. ln\((\frac{k1}{k2}) = \frac{E}{R} (\frac{1}{T2}+\frac{1}{T1}) \) | |
| 8. |
The slope of the line in the graph gives the ___________ |
| A. | Activation energy |
| B. | Rate constant |
| C. | Frequency factor |
| D. | Insufficient data |
| Answer» B. Rate constant | |
| 9. |
Arrhenius first suggested the temperature dependence of the rate constant. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
Hydrogenation of oil is an example of ___________ reactor |
| A. | Homogeneous |
| B. | Heterogeneous |
| C. | Autocatalytic |
| D. | Insufficient data |
| Answer» C. Autocatalytic | |