Question

A. Give reasons for the following statements.
1. We are able to smell perfume in the entire room although it is sprayed in a corner.
2. When we empty a glass of water, we will see some drops still sticking to the glass surface.
3. Water changes into ice on freezing.
4. Gases occupy all the space available to them.
5. Liquids do not have fixed shape.
6. On beating with a hammer, a piece of chalk breaks while an iron nail does not.​

Answer 1

Answer:

1.gas spread fast maybe

2.evaporation and temperature

3.cold temperature

4.idk

5.iron nail molecules are tightly packed

Answer 2

Answer:

1. Because of diffusion

2.water droplets does not stick there. They are just left because the pressure exerted on those droplets is very low.

3.Because of the high kinetic energy.

4.Because gases have neither a fixed shape nor a fixed volume.

5.Because there is a quite strong force of attraction between the particles of a liquid which holds them together but the force is not strong enough to hold the particles in fixed position.

6.Because the kinetic energy in the iron nail is higher than that of chalk.

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