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प्रश्न
Differentiate the general properties of solids, liquids and gases in the form of a table — with reference to free surfaces.
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उत्तर
| Solids | They have any number (of free surfaces) |
| Liquid | They have one free surface |
| Gases | They have no free surfaces |
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संबंधित प्रश्न
Give two example of the following:
The substances which do not change their state on heating.
Write your observation and conclusion for the following.
When a small stone is gently dipped into a glass filled with water.
Give reason:
Why do liquids and gases flow but solids do not ?
Fill in the blank:
Liquids have a definite ............
Write whether the following statement is true or false.
There is no difference between evaporation and boiling.
Write whether the following statement is true or false.
Intermolecular force of attraction is greater in gases than in liquids.
Which of the following statement is incorrect?
When a beam of sunlight enters a room through a window, we can see tiny particles X suspended in a gas (or rather a mixture of gases) Y which are moving rapidly in a very haphazard manner.
- What could particles X be ?
- Name the gas (or mixture of gases) Y.
- What is the phenomenon exhibited by particles X known as ?
- What is causing the movement of particles X ?
- What conclusion does the existence of this phenomenon give us about the nature of matter ?
Give reasons for the following:
Solids have a definite shape and are highly rigid while gases have to definite shape and are least rigid.
Give a reason why –
Solids have a definite volume & a definite shape.
