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प्रश्न
Give two examples for of the following
Substances which sublime.
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उत्तर
Naphthalene, camphor, dry ice.
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संबंधित प्रश्न
At high altitudes, water boils above 100° C.
Evaporation takes place at ...............temperature.
A gas has neither a definite volume nor a definite shape. Describe the molecular model to explain it.
What happens when a solid is heated?
Fill in the blank
Liquids have no definite ...........
Fill in the blank
When a gas is cooled, its molecules .............. energy.
Write whether the following statement is true or false.
Only water can exist in three different states.
Name the phenomenon which cause the following change.
Disappearance of camphor.
Complete the statement given below by selecting the correct word.
The conversation of vapour into a liquid is called ____.
Match the arrangement of atoms in the three states of matter in List I with the correct state in List II.
| List I | List II |
| 1. Arrangement of atoms is far apart | A: Solids |
| 2. Force of attraction between atoms is very strong | B: Liquids |
| 3. Movement of atoms is in any random direction | C: Gases |
| 4. Particles diffuse very easily | |
| 5. Particles show movement about their own position |
