Is diffusion continue until equilibrium is reached?

Yes, diffusion continues until equilibrium is reached, which is the state where the concentration of particles is uniform throughout a given space. During diffusion, particles move from areas of higher concentration to areas of lower concentration, driven by their kinetic energy. This process continues until the concentration gradient no longer exists, resulting in an equal distribution of particles. At equilibrium, there is no net movement of particles, although individual particles continue to move.