Question

1. Matter is made up of small _____.

2. The forces of attraction between the particles are_____ in solids, ____ in liquids and _____in gases.

3.______ is the change of gaseous state directly to solid state without going through liquid state, and vice-versa.
4. Evaporation causes _ .

5. Latent heat of fusion is the amount of heat energy required to change 1 kg of solid into liquid at its _____.
6. Solid, liquid and gas are called the three_____of matter.

7. The smell of perfume gradually spreads across a room due to_____.

8. Rapid evaporation depends on the_____area exposed to atmosphere.

9. As the temperature of a system increases, the pressure of the gases_____.
10. As the volume of a specific amount of gas decreases, it’s pressure_____.

Answer 1

1) particles.

2) maximum , lesser , least

3) Deposition

4) cooling

5) melting point

6) states

7) diffusion

8) surface

9) decreases

10) increases

Answer 2

Explanation:

1. Matter is made up of small Particles.

2. The forces of attraction between the particles are maximum in solids, medium in liquids and minimum in gases.

3.Deposition is the change of gaseous state directly to solid state without going through liquid state, and vice-versa.

4. Evaporation causes Cooling .

5. Latent heat of fusion is the amount of heat energy required to change 1 kg of solid into liquid at its Melting points .

6. Solid, liquid and gas are called the three States of matter.

7. The smell of perfume gradually spreads across a room due to Diffusion.

8. Rapid evaporation depends on the  Surface area exposed to atmosphere.

9. As the temperature of a system increases, the pressure of the gases Decreases.

10. As the volume of a specific amount of gas decreases, it’s pressure Increase.

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