Advertisements
Advertisements
प्रश्न
Name the phenomenon which cause the following change.
Conversion of water into steam.
Advertisements
उत्तर
Conversion of water into steam is boiling.
APPEARS IN
संबंधित प्रश्न
Select the correct alternative
The solids are
Explain the change of a liquid into a gas at a constant temperature.
Water cycle is an example of interconversion of states of water. Explain.
Why liquids do not have definite shape?
Give a reason for the Pure substances have fixed melting or boiling points.
Write whether the following statement is true or false
All solids, on heating, first change to the liquid and then to the gaseous state always.
Write true or false for the statement. Rewrite the false statement correctly.
The intermolecular space in a gas is almost negligible.
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 |
Define the term ‘Liquefaction of gases’.
