B1.6 Diffusion

Question 1

What is diffusion

Answer 1

Diffusion is the spreading out of particles of any substance, in solution or a gas. Resulting in a net movement from an area of higher concentration to an area of lower concentration, down a concentration gradient

Question 2

What factors affect diffusion

Answer 2

Difference in concentrations, temperature, and available surface area

Question 3

Explain why diffusion takes place faster when there is an increase in temperature

Answer 3

Heating makes particles move more quickly speeding up diffusion as particles collide more often and harder and spread out faster

Question 4

Describe the concentration gradient

Answer 4

The difference between high concentration and low concentration. Diffusion occurs down a concentration gradient