Factors Affecting Diffusion

Question 1

Rate of diffusion: formula

Answer 1

Rate of diffusion ∝ (surface area x concentration difference)/thickness of membrane

Question 2

Rate of diffusion doubles if…

Answer 2

—Surface area/ concentration gradient is doubled (directly proportional)
— thickness of the exchange membrane is halved (inversely proportional)

Question 3

Fick’s law

Answer 3

The rate of diffusion is proportional to the surface area and the concentration gradient and inversely proportional to the thickness of the exchange membrane

Question 4

Factors that affect diffusion

Answer 4

1) pressure
2) distance
3) surface area
4) concentration gradient

Question 5

Define concentration

Answer 5

The measure of amount of mass of a solute dissolved in a given volume of solvent or solution