C1.6 - Diffusion Flashcards
What is meant by equilibrium?
What is meant by a low concentration?
An area that contains few particles.
Big particles will diffuse more ______ than smaller particles.
High temperatures cause diffusion to happen…
What is the definition of diffusion?
The net movement of particles from a high concentration to a low concentration until they are at equilibrium.
Low temperatures cause diffusion to happen…
What is meant by a high concentration?
An area that contains many particles.
Why can diffusion not happen in solids?
Because the particles in a solid are fixed in position.
Substances in which states can diffuse?
Liquids and gases - because their particles can move around.
What is meant by the net movement of particles?
The overall direction that particles move in.
What can affect the speed (rate) of diffusion?
- Particle size
- The state of the substance