MCQOPTIONS
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MCQOPTIONS
This section includes 8 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. |
The Le- Chatlier principle states that ____ |
| A. | No reaction is reversible |
| B. | All reactions are reversible at high temperatures |
| C. | A system experiencing disturbance shifts direction of equilibrium to nullify the change |
| D. | A system experiencing disturbance does not shift direction of equilibrium to nullify the change |
| Answer» D. A system experiencing disturbance does not shift direction of equilibrium to nullify the change | |
| 2. |
The plot of the function of equilibrium conversion to time for a bimolecular type reversible reaction is ____ |
| A. | Exponential |
| B. | Linear |
| C. | Logarithmic |
| D. | Quadratic |
| Answer» C. Logarithmic | |
| 3. |
Which of the following represents second order bimolecular type reversible reaction? |
| A. | A+B ↔ R+S |
| B. | A ↔ B |
| C. | A ↔ R+S |
| D. | A+B ↔ R |
| Answer» B. A ↔ B | |
| 4. |
For the reaction A ↔ R, k1 being the rate constant of forward reaction, k2 being the rate constant of backward reaction and XAe is the equilibrium conversion, k2 is obtained as _____ |
| A. | k2 = k1\(\frac{(1 – X_{Ae})}{(\frac{C_{A0}}{C_{R0}} + X_{Ae})} \) |
| B. | k2 = k1\(\frac{(1 + X_{Ae})}{(\frac{C_{A0}}{C_{R0}} + X_{Ae})} \) |
| C. | k2 = k1\(\frac{(1 – X_{Ae})}{(\frac{C_{A0}}{C_{R0}} – X_{Ae})} \) |
| D. | k2 = k1\(\frac{(1 – X_{Ae})}{(\frac{C_{A0}}{C_{R0}} – X_{Ae})} \) |
| Answer» B. k2 = k1\(\frac{(1 + X_{Ae})}{(\frac{C_{A0}}{C_{R0}} + X_{Ae})} \) | |
| 5. |
Equilibrium is a state in which ___ |
| A. | Rate of forward reaction > Rate of backward reaction |
| B. | Rate of forward reaction = Rate of backward reaction |
| C. | Rate of forward reaction < Rate of backward reaction |
| D. | Rate of forward reaction is independent of the rate of backward reaction |
| Answer» C. Rate of forward reaction < Rate of backward reaction | |
| 6. |
For the reaction A ↔ R, which of the following is the correct expression of CR? |
| A. | CR = CA0XA |
| B. | CR = CA0XA |
| C. | CR = CR0 + CA0 |
| D. | CR = CR0 + CA0XA |
| Answer» E. | |
| 7. |
State true or false.A reversible reaction is the one in which the reaction proceeds simultaneously in both directions. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
State true or false.It is possible to achieve a conversion greater than the equilibrium conversion. |
| A. | True |
| B. | False |
| Answer» C. | |