Understanding Gas Behavior: Mean-Free Path, Diffusion, and Effusion

Understanding Gas Behavior: Mean-Free Path, Diffusion, and Effusion

Assessment

Interactive Video

Physics

9th - 10th Grade

Hard

Created by

Jennifer Brown

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do gas particles take time to travel from one point to another despite their high speeds?

They are slowed down by gravity.

They travel in straight lines without any collisions.

They move in random paths and frequently collide with each other.

They are too large to move quickly.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the mean-free path of a gas change with pressure?

It increases with increasing pressure.

It increases with decreasing pressure.

It decreases with decreasing pressure.

It remains constant regardless of pressure.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary factor that influences the diffusion rate of gas particles?

The root mean square velocity of the particles

The temperature of the environment

The color of the gas

The shape of the container

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the context of diffusion, which type of particles reach a destination first?

Heavier particles

Particles with no charge

Particles with a higher temperature

Lighter particles

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is effusion in the context of gas behavior?

The process of gas particles escaping through a small hole into a vacuum

The process of gas particles spreading out in response to a concentration gradient

The process of gas particles being absorbed by a liquid

The process of gas particles colliding with each other

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to Graham's Law of Effusion, how is the rate of effusion related to the molar mass of a gas?

Unrelated to the molar mass

Inversely proportional to the square root of the molar mass

Directly proportional to the square of the molar mass

Directly proportional to the molar mass

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary difference between diffusion and effusion?

Diffusion requires a vacuum, while effusion does not.

Diffusion is faster than effusion.

Diffusion occurs in liquids, while effusion occurs in gases.

Diffusion involves a concentration gradient, while effusion involves a small hole.

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