Welcome to your B8 Practice Questions 1.11 – Diffusion & the particle model

1. 
What happens to the solubility of most gases in water when the temperature rises?

2. 

Sparkling drinks contain dissolved under pressure.

3. 
The solubility of gases increases with pressure.

4. 

is the process by which different fluids mix as a result of the random motions of their particles.

5. 
In which direction do particles move during diffusion?

6. 

Diffusion does not take place in because the particles cannot move from place to place.

7. 
The rate of diffusion in liquids is much faster than in gases.

8. 

Ammonia and hydrochloric acid fumes react and form a white smoke ring of .

9. 
Which Greek philosopher imagined that all substances are made of small particles?

10. 

The idea that all substances are made of particles is called the particle .

11. 
All particles of one substance are the same.

12. 

Particles are so small that we cannot see them with the naked .

13. 
How are the particles arranged in a solid?

14. 

If energy is added to a substance, its particles move .

15. 
In a gas, the particles are very close together.

16. 

The space between the particles of a gas is .