Particle model — Core Learning Objectives
Note
- Describe the particle structure of solids, liquids and gases in terms of the arrangement, separation and motion of the particles and represent these states using simple particle diagrams
- Describe the relationship between the motion of particles and temperature, including the idea that there is a lowest possible temperature (-273 °C), known as absolute zero, where the particles have least kinetic energy
- Describe the pressure and the changes in pressure of a gas in terms of the motion of its particles and their collisions with a surface
- Know that the random motion of microscopic particles in a suspension is evidence for the kinetic particle model of matter
- Describe and explain this motion (sometimes known as Brownian motion) in terms of random collisions between the microscopic particles in a suspension and the particles of the gas or liquid
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