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प्रश्न
Name the phenomenon which cause the following change.
Disappearance of camphor.
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उत्तर
Disappearance of camphor is sublimation.
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संबंधित प्रश्न
Fill in the blank
A solid exerts pressure .....................
A gas has neither a definite volume nor a definite shape. Describe the molecular model to explain it.
Describe the molecular model for a liquid. I-low does it explain that a liquid has no definite shape, but has a definite Volume?
Why liquids do not have definite shape?
Give a reason for the Pure substances have fixed melting or boiling points.
Give two examples for of the following
Substances which sublime.
Multiple choice question.
There are large intermolecular gaps in
What are the two main types of matter?
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 |
Define the term ‘Liquefaction of gases’.
