Question

QUESTION 6

1. What is the relationship between the temperature and diffusion rate?

2. What is the relationship between molecular size and diffusion rate?

3. Water molecules move from a faucet through a garden hose when the faucet is turned on is an example of simple diffusion.

   True

   False

Answer 1

*1.Relationship between temperature & diffusion rate:Diffusion rate is directly propotional to Temperature.

Higher Temperatures increase the energy of molecules ----which increases the movement of molecules--which increases the rate of diffusion.

Lower temperatures----decreases the energy of molecules, --- decreases the rate of diffusion.

*2. relationship between molecular size and diffusion rate :Diffusion rate is Inversly propotional to size of molecules

* Heavier molecules move slowly--that is they diffuse slowly.---Slower rate of diffusion.

*Lighter molecules move Fastly---So they diffuse faster-----Higher rate of diffusion.

3.False.

Simple diffusion is the process of movement of molecules from its higher concentration to its lower concentration without any expenditure of energy and without the help of any transport proteins.