Question

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Answer 1

Explanation:

Fill in the blanks :-

1.

2. maximum, moderate, minimum

3. Sublimation

4. cooling

5. melting point

6. states

7. diffusion

8. surface

True/False:-

1. True

2. True

3. False

4.

5. True

6. False

7. True

8. False

Q/A:-

1. The 3 states of matter are solids, liquids and gases. Ex.- Ice, Water, Steam

2. By supplying heat energy or by taking away heat energy.

3. Gases can be liquified by compression along with cooling.

4. Sublimation is the transition of a substance from solid state directly to the gaseous state without changing into the liquid state. Ex.- Camphor sublimates into its vapour form without melting.

5. The amount of heat energy required to change 1 kg of solid into a liquid at its melting point is known as the latent heat of fusion.

6. The amount of heat energy required to change 1 kg of liquid into its gaseous state at its boiling point is known as the latent heat of vaporization.

7. Steam.

8. By increasing pressure.