3.5.13

Gases

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Gases

Gases are one of the main three states of matter. They are useful because their properties mean they can be stored under pressure.

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Particle arrangement

  • Particles in gases are not close together.
  • They are far apart from each other because the forces between the particles are very weak.
  • They can be compressed.
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Movement

  • The movement of the particles is totally random.
  • Particles in gases have lots of energy and so move quickly.
  • Gases will completely fill their container.
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Density

  • Gases are not very dense because of the large spaces between the particles.
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Temperature

  • If you increase the temperature, particles will gain more energy.
  • As their energy increases, the particles will move faster and faster.
  • In a gas, this will increase the pressure because the particles will hit the wall of their container more often.

Jump to other topics

1Biology

1.1Cells, Tissues & Organs

1.2Reproduction & Variation

1.3Ecological Relationships & Classification

1.4Digestion & Nutrition

1.5Plants & Photosynthesis

1.6Biological Systems & Processes

2Chemistry

2.1Particles

2.2Chemical Reactions

2.3Atoms, Elements, Compounds

2.4The Periodic Table

2.5Materials & the Earth

2.6Reactivity

2.7Energetics

2.8Properties of Materials

3Physics

3.1Energy

3.2Forces & Motion

3.3Waves

3.4Electricity & Magnetism

3.5Matter

3.6Space Physics

4Thinking Scientifically

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