Gas Laws and Kinetic Theory of Gases

Gas Laws

By Angie Collins

• Indefinite volume: fills the container ​

• Takes the shape of the container (same as a liquid)​

• Has mass (all matter has mass) ​

Gas Properties

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Multiple Choice

Which is a quality that only gases display?

• Spread out to fill all available space

• Can be compressed

• Take the shape of their container

• All of these

Multiple Choice

Gas molecules have no mass

• Fales

• True

Multiple Choice

Gas has no definite volume

• Fales

• True

Kinetic Molecular Theory

1. Gad particles have volume and empty space

   1. Large number of particles far apart most of the volume is empty space

2. ​No attraction or repultions between the particles.

   1. The Kinetic energy overcomes the attractions forces

3. ​Particle are in constant, linear, random motion

4. Collisions are elastic - no kinetic energy is lost in a collision

5. ​Kinetic Energy is directly proportional to temperature

Subject | Subject

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Multiple Select

How do gas molecules move?

• in a circular motion

• in straight line paths

• in an orderly fashion

• constantly and randomly

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Multiple Choice

Which container will have lower pressure?

• First container

• second container

Multiple Choice

Boyle's PV law : When _______ is held constant, the pressure and volume of a gas are ________ proportional

• temperature, equally

• temperature, inversely

• mass, equally

• mass, inversely

Multiple Choice

Boyle's law : The pressure and volume of a gas show a _____ relationship.

• Inverse

• Direct

Multiple Choice

Whose law states that as pressure goes up, volume goes down?

• Mazias

• Boyle

• Charles

• Aglow

Multiple Choice

Charles' Law States...

• As Volume goes up temperature goes up 

• As Pressure goes down volume goes down 

• As Pressure goes up volume goes down

• As Pressure goes up temperature goes up

Multiple Choice

You leave a soccer ball outside in the winter. Will the ball end up flatter than it was before?

• Only if it's REALLY cold

• No

• Only if it has a leak

• Yes

Multiple Choice

As temperature rises ___________.

• an atom's kinetic energy decreases

• an atom's kinetic energy increases

• an atom's kinetic energy stays the same

Multiple Choice

The more energy that particles have, the ___ they move.

• faster

• slower

Open Ended

Write down any observations you remember from watching the video.

Questions to think about

• Which variables are changing in the video?

• Which variable stayed constant?

• Why did the marshmallows expand?

• Why did the marshmallows shrink?

• As one variable ____, the other variable ____

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Open Ended

Looking at the image, what are your observations?

Questions to think about

• Which variables are changing in the image?

• Which variable stayed constant?

• What is the name of the gas law being demonstrated?

• Where can we take the balloon if we want it to expand?

• What will happen to the volume of the balloon if we take it outside in Alaska at night?

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Open Ended

Looking at the image, what are your observations?

Questions to think about

• What variable is changing when the water is boiled and in what direction?

• If the boiler is turned off and ice is added to the water, what will happen?

• What is the name of the gas law being demonstrated?

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