MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Bioprocess Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Adsorption of methane follows the Langmuir adsorption isotherm at 90K. If p = 1.896cm3g-1bar-1 and b = 0.146bar-1. Calculate the value of θ. |
| A. | 0.116 bar |
| B. | 0.514 bar |
| C. | 0.214 bar |
| D. | 0.216 bar |
| Answer» E. | |
| 2. |
For an adsorbant-adsorbate system obeying the Langmuir adsorption isotherm, b = 0.48 bar-1 and p = 0.16 bar-1. At what pressure will 50% of the surface be covered? |
| A. | 0.05 bar |
| B. | 0.07 bar |
| C. | 0.08 bar |
| D. | 0.04 bar |
| Answer» C. 0.08 bar | |
| 3. |
Calculate the adsorption of a dye on activated carbon at 25°C, where k = 0.025, n = 0.5 and C = 0.04.Based on the Freundlich isotherm. |
| A. | 0.05 |
| B. | 0.030 |
| C. | 0.040 |
| D. | 0.060 |
| Answer» D. 0.060 | |
| 4. |
Which type of isotherm is given from the figure, Choose from the following options? |
| A. | Type 1 Adsorption isotherm |
| B. | Type 2 Adsorption isotherm |
| C. | Type 3 Adsorption isotherm |
| D. | Type 4 Adsorption isotherm |
| Answer» B. Type 2 Adsorption isotherm | |
| 5. |
What do you mean by the term “Sorption”? |
| A. | Attachment |
| B. | Detachment |
| C. | Diffusion |
| D. | Thermal Expansion |
| Answer» B. Detachment | |
| 6. |
FOR_AN_ADSORBANT-ADSORBATE_SYSTEM_OBEYING_THE_LANGMUIR_ADSORPTION_ISOTHERM,_B_=_0.48_BAR-1_AND_P_=_0.16_BAR-1._AT_WHAT_PRESSURE_WILL_50%_OF_THE_SURFACE_BE_COVERED??$ |
| A. | 0.05 bar |
| B. | 0.07 bar |
| C. | 0.08 bar |
| D. | 0.04 bar |
| Answer» C. 0.08 bar | |
| 7. |
Adsorption of methane follows the Langmuir adsorption isotherm at 90K. If p = 1.896cm3g-1bar-1 and b = 0.146bar-1. Calculate the value of θ.$# |
| A. | 0.116 bar |
| B. | 0.514 bar |
| C. | 0.214 bar |
| D. | 0.216 bar |
| Answer» E. | |
| 8. |
Which of the following is not characteristic of chemisorption? |
| A. | It is irreversible |
| B. | It is specific |
| C. | It is multilayer phenomenon |
| D. | Heat of adsorption is about 400kj |
| Answer» D. Heat of adsorption is about 400kj | |
| 9. |
Which of the following statements regarding the physical adsorption of a gas on surface of solid is not correct? |
| A. | On increasing temperature, adsorption increases continuously |
| B. | Enthalpy changes are negative |
| C. | Adsorption is specific |
| D. | It is reversible in nature |
| Answer» B. Enthalpy changes are negative | |
| 10. |
Calculate the adsorption of a dye on activated carbon at 25oC, where k = 0.025, n = 0.5 and C = 0.04. |
| A. | |
| B. | 0.050 |
| C. | 0.030 |
| Answer» D. | |
| 11. |
Which of the following isotherm is applicable to physical adsorption? |
| A. | Langmuir |
| B. | BET |
| C. | Freundlich |
| D. | Kisluik |
| Answer» D. Kisluik | |
| 12. |
The desorption curve is higher than the adsorption curve. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 13. |
What do you mean by the term “Sorption”?$ |
| A. | Attachment |
| B. | Detachment |
| C. | Diffusion |
| D. | Thermal Expansion |
| Answer» B. Detachment | |
| 14. |
Which of the following is not an adsorbent? |
| A. | Carbon |
| B. | Polymers and resins |
| C. | Clay |
| D. | Dry sponge |
| Answer» E. | |