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प्रश्न
Write your observation and conclusion for the following:
When a small stone is gently dipped into a glass filled with water.
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उत्तर
You will see that some water flows out of the tumbler and collects in the bowl. Remove the stone from the tumble. The level of water in the tumbler comes down. Now, pour the water collected in the bowl back into the tumbler. The glass tumbler is filled again. This is because the stone occupied space and therefore drives the water out of the tumbler. This proves that not only solids but liquids also occupy space.
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संबंधित प्रश्न
Write whether the following statement are true or false.
There is no difference between evaporation and boiling.
Write true or false for each statement. Rewrite the false statement correctly.
Solids can be compressed easily.
Match the following columns
| Column A | Column B | ||
| A. | A molecule is composed of | i. | does not exist free in nature. |
| B. | Ice, water and water vapour | ii. | can vibrate only up to about `10^-10`m from their mean position. |
| C. | An atom | iii. | atoms. |
| D. | Gases | iv. | are the three states of water. |
| E. | The molecules of a solid | v. | occupy space |
What do you mean by inter-molecular spacing?
Give reason :
A red ink drop added to a small amount of water in a glass turns water red in some time.
The intermolecular force is _______ in the particles of solid.
Identify the odd term out and explain.
Write a scientific reason.
Hydrogen is combustible, oxygen helps combustion, but water helps to extinguish fire.
Write a scientific reason.
Lemon sherbat has a sweet, sour and salty taste and it can be poured in a glass.
Particles of matter possess energy due to their random motion. Compare the particles in a solid, liquid and in gas with reference to the amount of kinetic energy possessed by each.
