Welcome to your B8 Practice Questions 1.7 – Particles, pressure & volume

1. 
In which state of matter are the particles very far apart and move randomly?

2. 
Why are liquids not very compressible?

3. 
What happens to the volume of a gas when its temperature increases?

4. 
How do the particles in a solid move?

5. 
In a liquid, the particles are still close together, but they can move about past each other.

6. 
Gases are not compressible.

7. 
An increase in external pressure produces a contraction in the volume of a gas.

8. 
1 ml is the same volume as 1 cm³.

9. 

The space between atoms or molecules in a liquid or gas is called the space.

10. 

In a solid, the particles are packed close together in a regular arrangement, called a .

11. 

A decrease in external pressure produces an increase in volume. The gas .

12. 

A decrease in temperature produces a of the volume of a gas.

13. 

The ability of the particles to move in liquids and gases produces their properties.

14. 

Fast moving particles at the surface of a liquid can escape into the gaseous state. This is called .

15. 

In a gas, the intermolecular space can be reduced by increasing the external .

16. 

The particle theory describes the three states of matter in terms of the movement of particles.