Phase Diagrams

Which letter on the diagram represents a gas?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-4

Which letter on the diagram represents a liquid?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-4

NGSS.MS-ESS2-4

NGSS.MS-PS3-4

What does point B represent?

• Triple point

• Critical point

• Equilibrium point

• Normal melting point

Which letter on the diagram represents a solid?

• A

• B

• C

• D

The temperature and pressure conditions at which the solid, liquid, and gas phases of a substance exist at the same time is called the

• Critical point

• Triple point

• Melting point

• Boiling point

What is the normal melting point of this substance?

• 150°C

• 100°C

• -50°C

• 0°C

Tags

NGSS.HS-PS3-4

NGSS.HS-PS1-2

Which letter on the diagram represents the triple point?

• A

• B

• C

• D

Tags

NGSS.HS-PS3-4

What is true regarding CO₂ for temperatures above 31°C?

• It does not exist

• It decomposes

• It cannot be condensed back into a liquid

• It is a plasma

What is the normal melting point of this substance?

• 40°C

• 60°C

• 100°C

• 110°C

Tags

NGSS.HS-PS3-4

What phase change occurs from F to E?

• Sublimation

• Deposition

• Melting

• Condensation

Tags

NGSS.MS-PS1-4