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. |
Consider a gas of n moles at a pressure of P and a temperature of T in Celsius, what would be its volume? |
| A. | nR(T + 273)/p |
| B. | nRT/p |
| C. | nR(T – 273)/p |
| D. | R(T + 273)/p |
| Answer» B. nRT/p | |
| 2. |
In a balloon of total pressure 6 atm there is a gaseous composition of 44 grams of carbon dioxide 16 grams of by oxygen and 7 grams of nitrogen, what is the ratio of nitrogen partial pressure do the total pressure in the balloon? |
| A. | 0.25 |
| B. | 0.5 |
| C. | 0.75 |
| D. | 1 |
| Answer» B. 0.5 | |
| 3. |
The partial pressure of a gas X is given by two bar, where is the total pressure of the gaseous mixture in a cylinder is 10 bar. What is the mole fraction of the gas X in that mixture? |
| A. | 0.5 |
| B. | 2 |
| C. | 0.2 |
| D. | 5 |
| Answer» D. 5 | |
| 4. |
Who gave the law regarding the partial pressure? |
| A. | Charles |
| B. | Dalton |
| C. | Lussac |
| D. | Thomas |
| Answer» C. Lussac | |
| 5. |
If the partial pressure of oxygen is given by three bar and the partial pressure of the other gas is four bar, then what is a total pressure that is exerted? |
| A. | 7 bar |
| B. | 3 bar |
| C. | 4 bar |
| D. | 1 bar |
| Answer» B. 3 bar | |
| 6. |
In a cylinder of pressure 1 bar, there is the hydrogen of 20 grams and neon of 50 grams, what is a partial pressure of hydrogen? |
| A. | 0.2 |
| B. | 0.8 |
| C. | 0.4 |
| D. | 0.6 |
| Answer» C. 0.4 | |
| 7. |
If the pressure of dry gas is given by X and the total pressure is given by X + 3, then what is aqueous tension? |
| A. | 2 |
| B. | X |
| C. | X + 2 |
| D. | 3 |
| Answer» E. | |
| 8. |
Which of the following do you think is a correct relationship between the molar mass of gas temperature and its pressure? |
| A. | M = dRT/P |
| B. | M = dRT/V |
| C. | PV = nRT |
| D. | M = VRT/P |
| Answer» B. M = dRT/V | |
| 9. |
A certain gas occupies 200 ml of volume at 2 bar pressure at hundred degrees Kelvin. How much volume does it occupy at 5 bar pressure and 200 degrees Kelvin? |
| A. | 200 ml |
| B. | 160 ml |
| C. | 240 ml |
| D. | 320 ml |
| Answer» C. 240 ml | |
| 10. |
What is the constant in ideal gas equation known as? |
| A. | Universal gas constant |
| B. | Pressure constant |
| C. | Temperature constant |
| D. | Boltzmann constant |
| Answer» B. Pressure constant | |