Phase Diagrams

What state of matter is X?

• solid

• liquid

• gas

• supercritical fluid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which statement is true for carbon dioxide at -60 °C?

• All three phases are possible.
• It can exist as a solid or a gas, depending on pressure.
• It is a solid.
• With enough pressure it can be melted.

Tags

NGSS.MS-PS1-4

What line segment represents only the solid state?

• A-B

• B-C

• C-D

• D-E

Tags

NGSS.MS-PS1-4

What is point B?

• triple point
• critical point
• equilibrium point
• normal melting point

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

How long does it take this substance to change from a liquid to a gas?

• 1 minute

• 2 minutes

• 10 minutes

• 15 minutes

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What phase change occurs at letter F?

• Melting

• Freezing

• Vaporization

• Sublimation

Tags

NGSS.HS-PS3-4

Are the particles moving faster or slower as time goes on?

• Faster

• Slower

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What phase change occurs at letter C?

• Vaporization

• Sublimation

• Melting

• Condensation

Tags

NGSS.HS-PS3-4

NGSS.HS-PS3-2

What will occur when the substance transitions from B to A?

• condensation

• evaporation

• melting

• freezing

Tags

NGSS.HS-PS3-4

During a phase change, the temperature

• increases
• decreases
• fluctuates
• stays the same

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4