Diffusion (evidence for particulate theory of matter)

Question 1

What is high concentration?

Answer 1

(where there’s plenty of them)

Question 2

What is low concentration?

Answer 2

(where there’s less of them)

Question 3

What is the definition of diffusion?

Answer 3

Diffusion is the movement of a substance from an area of high concentration to an area of lower concentration until the particles are evenly distributed.

Question 4

Diffusion can only take place in what and why?

Answer 4

Diffusion occurs in gases like air and liquids like water (fluids) because their particles can move around and collide with each other randomly.

Question 5

What are two examples of diffusion?

Answer 5

Diffusion is how smells spread out through the air and how concentrated liquids spread out when placed in water.

Question 6

read the bromine gas, i ain’t wasting time typing that when its an example

Answer 6

READ IT AS AN EXAMPLE

Question 7

Why would something diffuse faster? (ammonia/hydrogen chloride example)

Answer 7

(look at the ammonia gas and Hydrogen chloride example) it would diffuse faster if it is lighter and can move faster, so the particles would react closer to the side of the gas that diffuses slower

Question 8

Why would there be a difference if hot water is used instead of room temp. water?

Answer 8

When you increase heat energy the particles will gain kinetic energy and thus move faster and this will increase the rate at which diffusion will occur.

Question 9

What is an example of a solid diffusing in a liquid

Answer 9

Diffusion of potassium permanganate (KMnO4) in water (look at diagram)

Question 10

What is an example of diffusion in everyday life

Answer 10

kool-aid