Diffusion

• Diffusion is the gradual movement of particles from an area of high concentration to an area of low concentration.
• Diffusion happens in both solutions and gases because they can move around freely.
• The bigger the concenration gradient, the faster the diffusion rate.
• A higher temperature will also give a faster diffusion rate because the particles have more energy so move around faster.
• The simplest type of diffusion is when different gases diffuse through each other, such as perfume diffuses through the air in a room.