Question

1. Process of changing water to water vapour on heating.
2. Process of changing of a liquid into solid.
3. Physical state of water at 120°C.
4. Process of changing a solid directly to gaseous state.
5. Process of changing a solid into liquid.
6. Process of changing a gas into liquid on cooling.
7. SI unit of temperature.​

Answer 1

Answer:

1. evaporation
2. freezing
3. solid, liquid
4. sublimation
5. melting
6. condensation
7. kelvin

Answer 2

$\textbf{Answer:-}$

1. Process of changing water to water vapour on heating.

Evaporation is the process of changing water to water vapour on heating.

2. Process of changing of a liquid into solid.

Freezing is the process of changing of a liquid into solid.

3. Physical state of water at 120°C.

The boiling point of water is 100°C.Above this temperature, the water is converted into vapour.

Hence, the physical state of water at 120°C is vapour.

4. Process of changing a solid directly to gaseous state.

Sublimation is the process of changing a solid directly to gaseous state.

5. Process of changing a solid into liquid.

Melting is the process of changing a solid into liquid.

6. Process of changing a gas into liquid on cooling.

Condensation is the process of changing a gas into liquid on cooling.

7. SI unit of temperature.

Kelvin is the SI unit of temperature.