MCQOPTIONS
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MCQOPTIONS
This section includes 25 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. |
Methane is at the rate 50 moles is supplied to a reactor with air at the rate 1000 moles, the reactor leaves O2, N2, CO2 and H2O, what is the percentage of H2O in products? |
| A. | 5.8% |
| B. | 9.5% |
| C. | 15.4% |
| D. | 20.7%View answer |
| Answer» C. 15.4% | |
| 2. |
Methane is at the rate 50 moles is supplied to a reactor with air at the rate 1000 moles, the reactor leaves O2, N2, CO2 and H2O, what is the percentage of N2 in products? |
| A. | 25.4% |
| B. | 45.2% |
| C. | 75.2% |
| D. | 95.6%View answer |
| Answer» D. 95.6%View answer | |
| 3. |
Methane is at the rate 50 moles is supplied to a reactor with air at the rate 1000 moles, the reactor leaves O2, N2, CO2 and H2O, what is the percentage of CO2 in products? |
| A. | 4.7% |
| B. | 10.4% |
| C. | 16.5% |
| D. | 24.3%View answer |
| Answer» B. 10.4% | |
| 4. |
Methane is at the rate 50 moles is supplied to a reactor with air at the rate 1000 moles, the reactor leaves O2, N2, CO2 and H2O, what is the percentage of O2 in products? |
| A. | 10.4% |
| B. | 25.8% |
| C. | 45.6% |
| D. | 78.2%View answer |
| Answer» B. 25.8% | |
| 5. |
Methane is at the rate 50 moles is supplied to a reactor with air at the rate 1000 moles, the reactor leaves O2, N2, CO2 and H2O, what is the rate of products? |
| A. | 900 moles |
| B. | 950 moles |
| C. | 1000 moles |
| D. | 1050 molesView answer |
| Answer» E. | |
| 6. |
Octane is burnt with 40% excess O2, what is the percentage of CO2 in products? |
| A. | 18.18% |
| B. | 36.36% |
| C. | 54.54% |
| D. | 72.72%View answer |
| Answer» C. 54.54% | |
| 7. |
Propane is burnt with 20% excess O2, what is the percentage of CO2 in products? |
| A. | 12.5% |
| B. | 25% |
| C. | 45% |
| D. | 75.5%View answer |
| Answer» B. 25% | |
| 8. |
Pentane is burnt with 100% of excess air, what is the percentage of H2O in the products? |
| A. | 12.4% |
| B. | 34.6% |
| C. | 42.1% |
| D. | 56.9%View answer |
| Answer» D. 56.9%View answer | |
| 9. |
Ethene is burnt with 150% of excess air, what is the percentage of O2 in the products? |
| A. | 12.5% |
| B. | 33.3% |
| C. | 45.4% |
| D. | 52.9%View answer |
| Answer» E. | |
| 10. |
Ethene is burnt with 50% of excess air, what is the percentage of CO2 in the products? |
| A. | 11.11% |
| B. | 36.36% |
| C. | 66.66% |
| D. | 72.72%View answer |
| Answer» C. 66.66% | |
| 11. |
144 grams of C5H12 is burnt with 64 grams O2, and 44 grams of CO2 is formed, what is the percentage of excess O2? |
| A. | 25% |
| B. | 50% |
| C. | 75% |
| D. | 100%View answer |
| Answer» B. 50% | |
| 12. |
The extent of a reaction is 10, and the stoichiometric coefficient of O2 is 2.5, if the moles of O2 entering the process is 45, what is the percentage of excess air? |
| A. | 20% |
| B. | 40% |
| C. | 60% |
| D. | 80%View answer |
| Answer» E. | |
| 13. |
OCTANE_IS_BURNT_WITH_40%_EXCESS_O2,_WHAT_IS_THE_PERCENTAGE_OF_CO2_IN_PRODUCTS??$ |
| A. | 18.18% |
| B. | 36.36% |
| C. | 54.54% |
| D. | 72.72% |
| Answer» C. 54.54% | |
| 14. |
Methane is at the rate 50 moles is supplied to a reactor with air at the rate 1000 moles, the reactor leaves O2, N2, CO2 and H2O, what is the percentage of H2O in products? |
| A. | 5.8% |
| B. | 9.5% |
| C. | 15.4% |
| D. | 20.7% |
| Answer» C. 15.4% | |
| 15. |
Methane is at the rate 50 moles is supplied to a reactor with air at the rate 1000 moles, the reactor leaves O2, N2, CO2 and H2O, what is the percentage of N2 in products? |
| A. | 25.4% |
| B. | 45.2% |
| C. | 75.2% |
| D. | 95.6% |
| Answer» D. 95.6% | |
| 16. |
Methane is at the rate 50 moles is supplied to a reactor with air at the rate 1000 moles, the reactor leaves O2, N2, CO2 and H2O, what is the percentage of CO2 in products? |
| A. | 4.7% |
| B. | 10.4% |
| C. | 16.5% |
| D. | 24.3% |
| Answer» B. 10.4% | |
| 17. |
Propane is burnt with 20% excess O2, what is the percentage of CO2 in products? |
| A. | 12.5% |
| B. | 25% |
| C. | 45% |
| D. | 75.5% |
| Answer» B. 25% | |
| 18. |
Pentane is burnt with 100% of excess air, what is the percentage of H2O in the products? |
| A. | 12.4% |
| B. | 34.6% |
| C. | 42.1% |
| D. | 56.9% |
| Answer» D. 56.9% | |
| 19. |
Ethene is burnt with 150% of excess air, what is the percentage of O2 in the products? |
| A. | 12.5% |
| B. | 33.3% |
| C. | 45.4% |
| D. | 52.9% |
| Answer» E. | |
| 20. |
Ethene is burnt with 50% of excess air, what is the percentage of CO2 in the products? |
| A. | 11.11% |
| B. | 36.36% |
| C. | 66.66% |
| D. | 72.72% |
| Answer» C. 66.66% | |
| 21. |
144 grams of C5H12 is burnt with 64 grams O2, and 44 grams of CO2 is formed, what is the percentage of excess O2? |
| A. | 25% |
| B. | 50% |
| C. | 75% |
| D. | 100% |
| Answer» B. 50% | |
| 22. |
The extent of a reaction is 10, and the stoichiometric coefficient of O2 is 2.5, if the moles of O2 entering the process is 45, what is the percentage of excess air? |
| A. | 20% |
| B. | 40% |
| C. | 60% |
| D. | 80% |
| Answer» E. | |
| 23. |
10 moles of ethane is supplied with 49 moles of oxygen, what is the percentage of excess oxygen? |
| A. | 20% |
| B. | 40% |
| C. | 50% |
| D. | 70% |
| Answer» C. 50% | |
| 24. |
What is the percentage of excess air if 50 grams of air is in excess and 150 grams of air enters the process? |
| A. | 10% |
| B. | 25% |
| C. | 50% |
| D. | 100% |
| Answer» D. 100% | |
| 25. |
What is the percentage of excess air, if 10 moles of air entered the process and only 5 moles of that are required? |
| A. | 10% |
| B. | 50% |
| C. | 75% |
| D. | 100% |
| Answer» E. | |