diffusion

Question 1

what is diffusion?

Answer 1

diffusion is the random net movement of particles from an area of high concentration to an area of low concentration, down a concentration gradient.
this occurs until an equilibrium is reached.

Question 2

factors that affect the rate of diffusion:

Answer 2

temperature - the higher the temperature, the more kinetic energy the particles will have, so they will mix and move more quickly.
size of particles - the larger the particles, the slower the movement and hence the rate of diffusion.
concentration gradient - the greater the difference in concentration, the faster the rate of diffusion.