💧Diffusion is the passive movement of molecules or particles from an area of higher concentration to an area of lower concentration, driven by the concentration gradient. This process occurs in gases, liquids, and solids, requiring no external energy and continuing until equilibrium is reached

💧 Diffusion plays a vital role in biological and chemical systems, such as gas exchange in the lungs, where oxygen diffuses into the bloodstream and carbon dioxide diffuses out. 💧In cells, diffusion helps transport nutrients, waste products, and signaling molecules. It can be categorized into simple diffusion, where molecules move freely through a membrane, and facilitated diffusion, where specific transport proteins aid the movement of larger or polar molecules.

💧 Factors influencing diffusion include temperature, molecular size, medium density, and concentration differences. In daily life diffusion is observed in the spreading of perfumes, dissolving sugar in water, and the movement of ink in liquid.