IIT JEE : Gaseous State QUESTIONS AND ANSWERS :: part2 : 16 to 20
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
16.Which of the following will not change the r.m.s. if the gas molecules? |
| Change in temperature |
| Change in volume at constant T |
| Change in volume at constant T |
| Change in number of gas molecules. |
17.Which among the following contains Avogadro number of molecules? |
| 36 g of water vapours |
| 49 g of hydrogen sulphate |
| 17 g of ammonia |
| 4.4 g of carbon dioxide. |
18.Real gases deviate from ideal behaviour because their molecules |
| cause repulsive interactions on one another |
| cause attractive interaction on one another |
| are polyatomic |
| do not undergo elastic collisions. |
19.Three different gases X, Y, Z of molecular masses 32, 64, 71 were enclosed in a vessel at constant temperature till equilibrium is reached. Which of the following statement is/are true? |
| Gas X will be at the top of the vessel |
| Gas Y will be at the top of the vessel |
| Gas X will be at the bottom and Z will be at the top |
| Gases will form homogeneous mixture. |
20.The van der Waal constant b is equal to |
| four times the volume of 1 mol of gas |
| the molecular volume of 1mol of gas |
| four times the actual volume of molecules contained in 1 mol of gas |
| twice the molecular volume of 1 mol of gas. |
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