Molecule diffusion

Molecule diffusion is the process where molecules spread out from an area of higher concentration to an area of lower concentration, driven by natural movement. Imagine a drop of ink in water: over time, the ink particles disperse evenly throughout the liquid without external help. This movement occurs because molecules are constantly vibrating and colliding, which causes them to move randomly. Diffusion is vital for many biological and chemical processes, such as oxygen moving into cells or nutrients being absorbed, ensuring that substances reach their required locations efficiently.