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 vessel contains 10 moles of O2 and some other gases, total pressure is 10 atm, what is the partial pressure of O2? |
| A. | t1 atm |
| B. | t10 atm |
| C. | t100 atm |
| D. | tCannot be determined |
| Answer» E. | |
| 2. |
A container with total volume 10 liter is filled with 20% of O2, 40% of N2, and 40% of CO, what is the volume of O2? |
| A. | t2 liter |
| B. | t4 liter |
| C. | t8 liter |
| D. | t10 liter |
| Answer» E. | |
| 3. |
What is the partial pressure of O2 with fraction 0.1, if the total pressure is 10 Pa? |
| A. | t1 Pa |
| B. | t3 Pa |
| C. | t5 Pa |
| D. | t7 Pa |
| Answer» B. t3 Pa | |
| 4. |
What is the total pressure of contained if it contains 0.3 fraction of N2 with partial pressure 8 Pa, 0.3 fraction of H2 with partial pressure 2 Pa, 0.4 fraction of CO2 with partial pressure 15 Pa? |
| A. | t6.4 Pa |
| B. | t7 Pa |
| C. | t8.5 Pa |
| D. | t9 Pa |
| Answer» E. | |
| 5. |
What is the total pressure of contained if it contains 0.5 fraction of O2 with partial pressure 3 Pa, 0.3 fraction of H2 with partial pressure 5 Pa, 0.2 fraction of CO2 with partial pressure 15 Pa? |
| A. | t6 Pa |
| B. | t7 Pa |
| C. | t8 Pa |
| D. | t9 Pa |
| Answer» B. t7 Pa | |
| 6. |
A gas mixture contains 20% CO, 30% SO2, and 50% N2, if the partial pressure of N2 is 5 atm at 27oC, what is the molar volume of N2? |
| A. | t2.4 liter |
| B. | t3.7 liter |
| C. | t4.9 liter |
| D. | t5.6 liter |
| Answer» B. t3.7 liter | |
| 7. |
A gas mixture has 30% O2, 40% H2, and 30% N2 with molar volume of N2 10 L/mole at temperature 27oC, what is the partial pressure of H2? |
| A. | t2.4 atm |
| B. | t3.6 atm |
| C. | t4.8 atm |
| D. | t6.4 atm |
| Answer» B. t3.6 atm | |
| 8. |
A container has gas mixture of 40% CO2 and 60% H2 with total pressure 10 Pa, if now O2 is added to it isothermally so that the final composition of the mixture becomes 20% CO2, 30% H2, and 50% O2, what is the partial pressure of O2 in the new composition? |
| A. | t5 Pa |
| B. | t10 Pa |
| C. | t20 Pa |
| D. | t35 Pa |
| Answer» C. t20 Pa | |
| 9. |
A container has gas mixture of 20% H2 and 80% N2 with total pressure P, now same amount of O2 is added to the mixture, what is the new partial pressure of N2? |
| A. | t0.2P |
| B. | t0.8P |
| C. | tP |
| D. | t1.6P |
| Answer» C. tP | |
| 10. |
A gas mixture comprises of 20% CO2, 50% O2, and 30% N2 has the total pressure 100 Pa at temperature -73oC, if the temperature is increased to 27oC, what is the new partial pressure of N2? |
| A. | t15 Pa |
| B. | t30 Pa |
| C. | t45 Pa |
| D. | t60 Pa |
| Answer» D. t60 Pa | |
| 11. |
The highest pressure gas of a mixture has partial pressure p, the partial pressure of other gases decreases by factor of 2n-1, the partial pressure of second gases decreases by a factor of 2, partial pressure of third gas increases by 4, and so on, if the total pressure of gas mixture is 31p/16, how many gases are present in the mixture? |
| A. | t3 |
| B. | t5 |
| C. | t10 |
| D. | t15 |
| Answer» C. t10 | |
| 12. |
A gas mixture contains 30% CO2, 40% O2, 30% N2, if the partial pressure of CO2 is 6 Pa, what is the total pressure of gas mixture? |
| A. | t6 Pa |
| B. | t10 Pa |
| C. | t20 Pa |
| D. | t60 Pa |
| Answer» D. t60 Pa | |
| 13. |
A container has two gases at 27oC, one with molar volume 6 L/mole, another with molar volume 3 L/mole, what is the total pressure of the container? |
| A. | t6.9 atm |
| B. | t8.5 atm |
| C. | t12.3 atm |
| D. | t15.8 atm |
| Answer» D. t15.8 atm | |