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प्रश्न
Ice melts at 100°C.
पर्याय
True
False
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उत्तर
False.
The ice melts at 0° by absorption of heat.
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संबंधित प्रश्न
The temperature of a substance remains unaffected during its change of state.
Evaporation takes place at ...............temperature.
.............. process is just reverse of melting.
Name the three states of matter.
State the general properties of a solid.
One kind of matter can be distinguished from another by its physical properties and chemical properties.
State what would you observe if
(a) sugar is added to pebbles take in a plastic beaker
(b) sand is added to glass balls in a beaker. What would you conclude from this imaginative demonstration?
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 |
Gas like the state of Matter that exists at extremely cold temperatures used in the field of cryogenics.
Define the term ‘Liquefaction of gases’.
