MCQOPTIONS
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MCQOPTIONS
This section includes 13 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. |
A mixture contains 10% CO, 40% CO2 and 50% H2O, what is the mass percent of CO2? |
| A. | t9.5 |
| B. | t15.4 |
| C. | t39.5 |
| D. | t74.1 |
| Answer» B. t15.4 | |
| 2. |
A mixture contains 20% NaCl, 30% CH4 and 50% H2O, what is the mass percent of NaCl? |
| A. | t21 |
| B. | t34 |
| C. | t45 |
| D. | t68 |
| Answer» C. t45 | |
| 3. |
A mixture contains 20% CO2, 30% SO2 and 50% H2O, what is the mass percent of CO2? |
| A. | t23 |
| B. | t45 |
| C. | t66 |
| D. | t87 |
| Answer» B. t45 | |
| 4. |
The mole percent of CO2 and H2O in a mixture is 40% and 60% respectively, what is the mass percent of CO2? |
| A. | t24.1 |
| B. | t47.2 |
| C. | t61.9 |
| D. | t78.5 |
| Answer» D. t78.5 | |
| 5. |
The mole percent of H2 and N2 in a mixture is 50% each, what is the mass percentage of H2? |
| A. | t12.5 |
| B. | t25 |
| C. | t50 |
| D. | t87.5 |
| Answer» B. t25 | |
| 6. |
A gaseous mixture composed of 20% CH4, 30% C2H4, 35% C2H2, and 15% C2H2O. What is the average molecular weight of the mixture? |
| A. | t20 |
| B. | t25 |
| C. | t6.75 |
| D. | t9.25 |
| Answer» D. t9.25 | |
| 7. |
A liquid mixture composed of 20% CH4, 30% C2H4, 35% C2H2, and 15% C2H2O. What is the average molecular weight of the mixture? |
| A. | t20 |
| B. | t25 |
| C. | t6.75 |
| D. | t9.25 |
| Answer» C. t6.75 | |
| 8. |
A gaseous mixture is composed of 20% CO2, 40% O2 and 40% N2. What is the mass fraction of N2? |
| A. | t0.307 |
| B. | t0.416 |
| C. | t0.529 |
| D. | t0.784 |
| Answer» B. t0.416 | |
| 9. |
A liquid mixture of O2, CH4 and CO has the composition 32% O2, 16% CH4 and 52% CO, then what is the mole fraction of CH4? |
| A. | t0.1 |
| B. | t0.2 |
| C. | t0.25 |
| D. | t0.5 |
| Answer» C. t0.25 | |
| 10. |
If hydrogen is 14% by weight in CH3(OH)x(NH3)y, then what is the possible value of x*y? |
| A. | t6 |
| B. | t12 |
| C. | t18 |
| D. | t24 |
| Answer» B. t12 | |
| 11. |
What is the value of x in C2H8(OH)x if the percentage by weight of hydrogen is 12%? |
| A. | t1 |
| B. | t2 |
| C. | t3 |
| D. | t4 |
| Answer» E. | |
| 12. |
What is the weight of 10 moles of a mixture with composition 15% O2, 25% SO2, 30% COCl2, 25% SO3 and 5% N2? |
| A. | t124 |
| B. | t345 |
| C. | t507 |
| D. | t719 |
| Answer» E. | |
| 13. |
What is the molecular weight of a mixture that contains 25% CO2, 40% O2 and 35% N2? |
| A. | t11.2 g |
| B. | t22.4 g |
| C. | t33.6 g |
| D. | t44.8 g |
| Answer» D. t44.8 g | |