phase diagram

What is it called when a solid goes directly to the gas phase?

• deposition

• solidification

• sublimation

• melting

What line segment represents only the solid state? (Diagram F)

• A-B

• B-C

• C-D

• D-E

Tags

NGSS.MS-PS1-4

Between which points is the temperature of the substance remaining constant? (Diagram F)

• A-B only.

• A-B, C-D, E-F

• B-C only.

• B-C, D-E

Tags

NGSS.MS-PS1-4

True or false: melting and freezing occur at the same temperature!

• True
• False
• I don't know

Tags

NGSS.MS-PS1-4

A substance's heating curve is shown in the graph. What is its boiling point? (Diagram B)

• 100 C

• 60 C

• 80 C

• 20 C

Tags

NGSS.MS-PS1-4

Are the particles moving faster or slower as time goes on? (Diagram F)

• Faster

• Slower

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1

Which line segment demonstrates vaporization occurring? (Diagram E)

• B-C

• C-D

• D-E

• E-F

Tags

NGSS.MS-PS1-4

How long does it take this substance to change from a liquid to a gas? (Diagram E)

• 1 minute

• 2 minutes

• 10 minutes

• 15 minutes

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What happens when thermal energy is taken away from particles?

• They move faster and farther apart
• They move slower and closer together

Tags

NGSS.MS-PS1-4

During a phase change, the temperature

• increases
• decreases
• fluctuates
• stays the same

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4