Properties of Gas

If the temperature outside is very hot, a bag of potato chips will bulge larger. Why?

• The number of gas molecules increased.

• The pressure increased because of the high temperature.

• The volume increased because of the temperature.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What unit is used to measure the volume of a gas?

• Liters

• kelvin

• kPa

• moles

Assuming the temperature is kept the same, how could you increase the gas pressure inside a container?

• Add some liquid

• Remove some of the molecules of gas

• Decrease the volume of the container

• Change the type of gas

We use moles to tell us what?

• how much energy the molecules of gas have

• how much space the molecules of gas occupy

• how many molecules of gas are in the container

When volume decreases, what happens to the pressure in a container?

• Pressure increases.

• Pressure decreases?

What happens to the volume of a gas if the temperature increases?

• The volume of gas will increase.

• The volume of gas will decrease.

• The volume will stay the same.

Tags

NGSS.MS-PS1-4

A balloon will pop as it rises in the atmosphere where there are fewer air particles because..

• when pressure goes down, volume goes up.

• when pressure goes up, volume goes down.

• when temperature goes down, volume goes up.

• when temperature goes up, volume goes down.

How is this going to cause the balloon to rise into the air?

• The air inside the balloon will become cooled. The air particles will move slower and move closer together. The density of the air inside the balloon will be greater than the density of the air outside the balloon which will allow it to rise into the sky.

• The air inside the balloon will become heated. The air particles will move slower and closer together. The density of the air inside the balloon will be less than the density of the air outside the balloon which will allow it to rise into the sky.

• The air inside the balloon will become heated. The air particles will move faster and spread out. The density of the air inside the balloon will be less than the density of the air outside the balloon which will allow it to rise into the sky.

• The air inside the balloon will become heated. The air particles will move faster and spread out. The density of the air inside the balloon will be greater than the density of the air outside the balloon which will allow it to rise into the sky.

Tags

NGSS.MS-PS1-4

Which container will have a lower pressure?

• left

• right

• They both have the same pressure.

Which graph accurately describes the relationship between pressure and volume?

• 
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