C1.6 - Diffusion

Question 1

What is meant by equilibrium?

Answer 1

Evenly spread

Question 2

What is meant by a low concentration?

Answer 2

An area that contains few particles.

Question 3

Big particles will diffuse more ______ than smaller particles.

Answer 3

slowly

Question 4

High temperatures cause diffusion to happen…

Answer 4

faster

Question 5

What is the definition of diffusion?

Answer 5

The net movement of particles from a high concentration to a low concentration until they are at equilibrium.

Question 6

Low temperatures cause diffusion to happen…

Answer 6

slowly

Question 7

What is meant by a high concentration?

Answer 7

An area that contains many particles.

Question 8

Why can diffusion not happen in solids?

Answer 8

Because the particles in a solid are fixed in position.

Question 9

Substances in which states can diffuse?

Answer 9

Liquids and gases - because their particles can move around.

Question 10

What is meant by the net movement of particles?

Answer 10

The overall direction that particles move in.

Question 11

What can affect the speed (rate) of diffusion?

Answer 11

1. Temperature
2. Particle size
3. The state of the substance