Gas Properties Intro Practice

What are the units for pressure?

• moles

• liters

• atmospheres

• Kelvin

What are the units for volume?

• moles

• liters

• atmospheres

• Kelvin

What are the units for amount of gas?

• moles

• liters

• atmospheres

• Kelvin

What are the units for temperature?

• moles

• liters

• atmospheres

• Kelvin

If I take the mass of an unused balloon, then inflate it with air, the mass is greater. This is because...

• Gases are compressible

• Gases have mass

• Gases fill their containers

• Gases exert pressure on their surroundings

Normal scuba diving tanks could hold only about 5 liters of water, but are filled with 20 liters of air for the diver. This is possible because...

• Gases have mass

• Gases exert pressure on their surroundings

• Gases can be compressed

• Gases fill their containers

Which of the following is true?

• Gases don't have mass

• Gases cannot be compressed

• Gases don't exert pressure on their surroundings

• Gases fill their containers

Tags

NGSS.HS-PS3-2

When climbing to a high point (like the top of a mountain, or in an airplane,) air is less dense. This means...

• The gas will exert less pressure on its surroundings

• The gas can't fill its container

• The gas no longer has mass

• There is no gas present

A container filled with hot gas is suddenly cooled. The container implodes and is crushed. This happens because...

• Gas pressure depends on temperature

• Gases have mass

• Gases can be compressed

• Gases fill their containers

What is the volume of 1 mole of gas at standard temperature and pressure?

• 22.4L

• 1.0L

• 6.02x10^23L

• It depends on the gas

Answer explanation

Remember this is a little weird... all gases have the same volume under the same conditions!