Gases

Gas is one of the four states that matter can be in (solid, liquid, plasma, gas).

Properties

  • Volume changes with Pressure and Temperature
  • Low viscosity (relatively high resistance to flow)
  • Relatively low densities
  • Miscible - gases mix with one another in any proportions
  • Expand to occupy all the space of their container (implies that the molecules are free to move anywhere - therefore forces v weak)