Diffusion

Question 1

What is diffusion

Answer 1

Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration until equilibrium is reached.

Question 2

What are the factors affecting the rate of diffusion?

Answer 2

The factors include concentration gradient, temperature, surface area, and the nature of the molecules (size, polarity)

Question 3

What is the concentration gradient in diffusion

Answer 3

The concentration gradient is the difference in concentration of a substance across a space. Diffusion occurs faster when this gradient is steeper.

Question 4

How does temperature affect diffusion

Answer 4

Higher temperatures increase the kinetic energy of molecules, causing them to move faster and thus increasing the rate of diffusion

Question 5

What is meant by equilibrium in diffusion

Answer 5

Equilibrium is reached when the molecules are evenly distributed throughout the space, and there is no net movement of particles.

Question 6

Can you give an example of diffusion in biological systems

Answer 6

Oxygen and carbon dioxide diffusing across the respiratory membrane in the lungs is an example of diffusion in biological systems

Question 7

How are diffusion and osmosis similar

Answer 7

Both processes involve the movement of molecules from an area of higher concentration to an area of lower concentration

Question 8

How are diffusion and osmosis different

Answer 8

Diffusion can involve the movement of any type of molecules, while osmosis specifically involves the movement of water molecules through a selectively permeable membrane

Question 9

What is an example of a simple diffusion experiment?

Answer 9

A simple diffusion experiment involves placing a drop of dye in water and observing how it spreads over time.