Table of Contents
What are the 4 main ideas of the particle model?
The particle model has four main tenets:
- All substances are made of particles.
- The particles are attracted to each other (some strongly, others weakly).
- The particles move around (have kinetic energy).
- As temperature increases, the particles move more (their kinetic energy increases).
What are the limitations to the particle model?
Particle theory can help to explain melting, boiling, freezing and condensing. (HT only) Limitations of the simple model include that there are no forces between the spheres, and that atoms, molecules and ions are not solid spheres.
What does the particle model take into account?
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 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.
What is the particle model useful for?
Scientists find the particle model useful for two reasons. First, it provides a reasonable explanation for the behaviour of matter. Thus, the particle model can be used to explain the properties of solids, liquids, and gases. It can also be used to explain what happens in changes of state (Figure 1 on the next page).
What is a particle model diagram?
The particle model is a scientific theory that explains the properties of solids, liquids and gases by suggesting that all matter is made of particles, and that those particles behave differently in solids, liquids and gases. A diagram showing the particle model for solids, liquids and gases.
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.
What are the weaknesses of the particle theory?
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 .
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 the 6 rules of the particle theory?
Terms in this set (6) Particles have space between them. Particles are always moving. Particles move faster and get farther apart when heated. Particles are attracted to each other.
How does the particle model of matter describe matter?
The particle model describes matter in a very specific way. It describes four important aspects of matter: All matter is made up of particles that are incredibly small – much too small to see with the naked eye. The particles can be atoms or combinations of atoms that are bonded.
What are the four main ideas of the particle model?
The particle model of matter is comprised of four main ideas: All matter is made up of tiny particles. Everything around you can be broken down into smaller particles called atoms. The particles of one substance are all the same and different substances are made up of different particles.
How are substances attracted to each other in the particle model?
All substances are made of particles. The particles are attracted to each other (some strongly, others weakly). The particles move around (have kinetic energy).
What makes up the particles of a substance?
All matter is made up of tiny particles. Everything around you can be broken down into smaller particles called atoms. The particles of one substance are all the same and different substances are made up of different particles.