# What is the particle model?

## What is the particle model?

The particle theory of matter is a model that describes the arrangement and movement of particles in a substance. The model is used to explain the physical properties of solids, liquids and gases.

### What is the difference between the particle model of matter and the kinetic theory of matter?

The key difference between particle model of matter and kinetic molecular theory is that the particle model of matter describes the properties of solid, liquid and gas phases of matter whereas the kinetic molecular theory describes the properties of gases.

What are the 5 parts of the particle model?

Terms in this set (5)

• All matter is made of particles.
• Particles have space between them.
• Particles are always moving.
• Particles move faster and get farther apart when heated.
• Particles are attracted to each other.

Is the particle model perfect?

The particle model is not a complete explanation for the properties of a material. However, it is a useful approximation which can make predictions about the properties of solids, liquids and gases, that is not perfect.

## What are five main ideas of particle theory?

3.2 state the postulates of the particle theory of matter (all matter is made up of particles; all particles are in constant motion; all particles of one substance are identical; temperature affects the speed at which particles move; in a gas, there are spaces between the particles; in liquids and solids, the particles …

### Why is the particle model bad?

Limitations of the particle model – Higher tier This is much more than you normally see in diagrams. In addition, the particle model does not take into account the forces between particles. For example, some weak forces of attraction remain between particles in the gas state.

Why is the particle model not accurate?

The kinetic theory model assumes that particles collide and bounce off each other. But, in reality, particles often do not simply bounce off each other because they have forces of attraction between them. This affects properties such as melting point .