Fick's Law of Diffusion

Fick's Law of Diffusion describes how substances like gases or liquids move from areas of high concentration to areas of low concentration. It states that the rate of this movement depends on the concentration difference, the area available for diffusion, and the ability of the substance to pass through the medium. Essentially, the bigger the concentration difference and the larger the area, the faster diffusion occurs. Conversely, thicker barriers or less permeable materials slow down diffusion. This principle explains processes like oxygen passing into blood in the lungs or nutrients spreading within cells.