Liquid Oxygen (Amplify Lesson 3.1)

Front

What color is liquid oxygen?

Back

Pale blue.

Front

Why do substances like hydrogen and methane require extreme cooling to become liquid?

Back

Because of their weak molecular attraction.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is the role of molecular attraction in changing the phase of a substance?

Back

It pulls molecules toward each other.

Tags

NGSS.MS-PS1-4

Front

What happens in the third tank of the machine used to produce liquid oxygen?

Back

The temperature is increased slightly to evaporate nitrogen.

Tags

NGSS.MS-PS1-4

Front

Why is liquid oxygen rare compared to oxygen gas?

Back

It requires removal of a lot of kinetic energy to produce.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is liquid oxygen?

Back

Liquid oxygen is oxygen that has been cooled to a very low temperature, causing it to become a pale blue liquid.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is the boiling point of oxygen?

Back

The boiling point of oxygen is -183 degrees Celsius (-297 degrees Fahrenheit).

Tags

NGSS.MS-PS1-4

Front

What is the significance of molecular weight in liquefying gases?

Back

Gases with higher molecular weights generally require less cooling to become liquid compared to lighter gases.

Front

How does temperature affect the state of a substance?

Back

Increasing temperature generally increases kinetic energy, causing substances to change from liquid to gas.

Tags

NGSS.MS-PS1-4

Front

What is kinetic energy?

Back

Kinetic energy is the energy that an object possesses due to its motion.

Tags

NGSS.MS-PS3-1