A purple pill is put into a beaker containing water. The beaker is then left for several hours. The diagram shows how the water looks when the pill is added and again several hours later. Which statement explains the reason for this change?
- ADiffusion occurs because the pill is coloured.
- BDiffusion occurs faster at higher temperatures.
- CDiffusion occurs from an area of high concentration to one of lower concentration.
- DGases diffuse faster than liquids.