MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Food Processing Unit Operations knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The pressure of a 2.74moles of a gas in a container was 432.0 torr. What would the pressure inside the container be if 5.05 moles of the gas was in it? |
| A. | 896.20 torr |
| B. | 796.20 torr |
| C. | 596.20 torr |
| D. | 696.20 torr |
| Answer» C. 596.20 torr | |
| 2. |
In an experiment,the barometric pressure of gas is 1.043 atm, Some H2 was collected over water at 27.0 C. What is the partial pressure of the dry H2 in the container? |
| A. | 0.1021 atm |
| B. | 102.1 atm |
| C. | 10.21 atm |
| D. | 1.021 atm |
| Answer» E. | |
| 3. |
Which of the following statements about partial pressure are correct?Statement 1: The partial pressure of each gas in a mixture is not proportional to its mole fraction.. |
| A. | nStatement 2: The partial pressure of each gas is the product of the total pressure and the mole fraction of that gas. |
| B. | True, False |
| C. | True, True |
| D. | False, True |
| E. | False, False |
| Answer» D. False, True | |
| 4. |
What is the limitation of Dalton s law? |
| A. | It implies only for real gases at low pressure |
| B. | It implies only for real gases at high pressure |
| C. | It implies only for real gases at low concentration |
| D. | It implies only for real gases at high concentration |
| Answer» B. It implies only for real gases at high pressure | |
| 5. |
Does partial pressure depend on temperature? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Which of the following component is constant in Boyle s law? |
| A. | Concentration |
| B. | Pressure |
| C. | Temperature |
| D. | Volume |
| Answer» D. Volume | |
| 7. |
What is r value in pV= nRT? |
| A. | 0.8314 J/mol K |
| B. | 831.4 J/mol K |
| C. | 83.14 J/mol K |
| D. | 8.314 J/mol K |
| Answer» E. | |
| 8. |
What is partial pressure of water vapor? |
| A. | 23.8 mm Hg |
| B. | 230.8 mm Hg |
| C. | 2.38 mm Hg |
| D. | 0.238 mm Hg |
| Answer» B. 230.8 mm Hg | |
| 9. |
What is the use of partial pressure? |
| A. | To predict the movement of gases |
| B. | To predict the concentration change |
| C. | To predict the pressure change |
| D. | To predict the mole fraction |
| Answer» B. To predict the concentration change | |
| 10. |
How to calculate partial pressure? |
| A. | Sum of the pressures of each individual gas |
| B. | Total pressure multiplied by the mole fraction of that gas |
| C. | Sum of the mole fraction of each individual gas |
| D. | Total concentration multiplied by the mole fraction of that gas |
| Answer» C. Sum of the mole fraction of each individual gas | |