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प्रश्न
Under what conditions do solids, liquids and gases change their state.
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उत्तर
Matter can change from one state to another on changing temperature and pressure.
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संबंधित प्रश्न
Fill in the blank:
The molecules are made up of ________
Name the smallest particle from which matter is made up.
Why do solids, liquids and gases differ in their physical states?
What is the approximate size of a molecule?
Give reason :
When a teaspoon of sugar is added to half a glass of water and stirred, the water level in the glass does not rise.
Differentiate between the following:
Atoms and molecules
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, very closely packed | A: Solids |
| 2. Interparticle space is maximum | B: Liquids |
| 3. Force of attraction between particles is very weak | C: Gases |
| 4. Movement of particles is about their own position | |
| 5. Particles in the state of matter are slightly compressible and not closely packed. |
Give a reason for the following:
An empty tumbler lowered into a glass beaker containing water, on tilting shows bubbles of air coming out, but when not tilted, no bubbles are seen.
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
Write scientific reason.
Lemon sherbat has sweet, sour and salty taste and it can be poured in a glass.
