What is diffusion?
Q: What is diffusion?
A: Diffusion is a process where molecules of a material move from an area of high concentration to an area of low concentration until it has reached equilibrium.
Q: In what type of materials does diffusion usually occur?
A: Diffusion usually happens in a mixture in gas, a liquid and occasionally colloids.
Q: How can we observe diffusion?
A: It is possible to see diffusion happening when two liquids are mixed in a transparent container.
Q: What does diffusion describe?
A: Diffusion describes the constant movement of particles in all liquids, gases and colloids. These particles move in all directions bumping into each other.
Q: Is there any particular direction that particles move during diffusion?
A: No, the particles move randomly and do not have any particular direction during diffusion.
Q: Does the movement of particles stop after reaching equilibrium?
A: Yes, once equilibrium has been reached, the movement of particles stops as they are evenly spread throughout the material.
Q: Are there any exceptions to this process?
A: Yes, some materials may require additional energy or pressure for molecules to diffuse through them due to their structure or composition.
