MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A gas that is of 2 moles occupies a volume of about 500 ml at 300 Kelvin and 50 atmospheric pressure, calculate the compressibility factor of the gas. |
| A. | 1.863 |
| B. | 0.7357 |
| C. | 0.5081 |
| D. | 1.8754 |
| Answer» D. 1.8754 | |
| 2. |
What are the units of b in van der Waals equation? |
| A. | L/mol |
| B. | L mol |
| C. | 1/L mol |
| D. | L |
| Answer» B. L mol | |
| 3. |
The value of a in van der Waal equation is _____________ /dependent on ___________ |
| A. | pressure |
| B. | temperature |
| C. | pressure and temperature |
| D. | independent of pressure and temperature |
| Answer» E. | |
| 4. |
Which of the following is a corrected equation of ideal gas equation? |
| A. | (P an<sup>2</sup>V<sup>2</sup>)(V nb) = nRT |
| B. | (P an<sup>2</sup>/V<sup>2</sup>)(V + nb) = nRT |
| C. | (P + an<sup>2</sup>/V<sup>2</sup>)(V nb) = nRT |
| D. | (P an<sup>2</sup>/V<sup>2</sup>)(V nb) = nRT |
| Answer» E. | |
| 5. |
Above Boyle temperature real gases show __________ deviation from ideal gases. |
| A. | positive |
| B. | negative |
| C. | no |
| D. | both positive and negative |
| Answer» B. negative | |
| 6. |
Compressibility can be expressed as _______ |
| A. | real volume divided by the ideal volume |
| B. | real universal gas constant by ideal universal gas constant |
| C. | real temperature by ideal temperature |
| D. | real volume divided by real pressure |
| Answer» B. real universal gas constant by ideal universal gas constant | |
| 7. |
What is the temperature known as where a real gas obeys Boyle s law or as an ideal gas? |
| A. | Boyle temperature |
| B. | Charge temperature |
| C. | Critical temperature |
| D. | Absolute Temperature |
| Answer» B. Charge temperature | |
| 8. |
Which of the following conditions do you think a real gas behaves as an ideal gas? |
| A. | high pressure |
| B. | low pressure |
| C. | intermediate pressure |
| D. | at any pressure |
| Answer» C. intermediate pressure | |
| 9. |
PV/nRT is known as ____________ |
| A. | compressibility factor |
| B. | volume factor |
| C. | pressure factor |
| D. | temperature factor |
| Answer» B. volume factor | |
| 10. |
The plot PV vs v at constant temperature is a straight line for real gases. |
| A. | true |
| B. | false |
| Answer» C. | |