Diffusion - Chemistry

In what direction does a gas diffuse?

• From a low concentration to high concentration

• From a high concentration to low concentration

• Where ever they want, they are gases

• Gases don't diffuse, they stay in one location

Brownian Motion is described as:

• The predictable movement of gas molecules

• The idea that all gases are brown

• The random movement of gases due to collisions

• The time it takes a gas to diffuse in a container

Do gasses stop moving after they are completely mixed?

• Yes

• No

Does a gas that has a larger mass diffuse slower or faster than a gas with a smaller mass?

• Faster

• Slower

How do gas molecules move?

• In a predictable pattern

• Randomly

• They do not move

Why does it take a long time for a smell to diffuse in a room?

• The molecules are slow moving

• It depends on the "strength" of the smell

• The molecules are colliding with air molecules

• The molecules are just lazy and decide when they want to move or not