6 days ago ... Food coloring illustrates diffusion in water. Diffusion is the mixing of molecules due to their random motion, whether in a liquid or a gas. Because molecules in cold water have less kinetic energy than in warm water, the diffusion process is much slower than in warm water. read more
When food coloring is added to water, it spreads throughout the water in a process called diffusion. The coloring continues to spread until all parts of the water contain an equal concentration of the dye. Continue Reading. read more