Phase Changes Quiz

Condensation is . . . .

• gas to liquid
• liquid to gas
• gas to solid
• solid to liquid

At higher temperatures

• particles in an object have less energy
• particles in an object move faster
• a gas contracts

Phase change going from a Solid to a Liquid...

• Freezing

• Condensation

• Melting

• Sublimation

What phase change occurs between points B and C if heat is added?

• Freezing
• Melting
• Boiling
• Condensing

Which phase change occurs between points D and E if heat is added?

• Freezing
• Melting
• Boiling
• Condensing

Which phase change occurs between points B and C if heat is REMOVED

• Freezing
• Boiling
• Melting
• Condensing

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

• A-B

• B-C

• C-D

• D-E

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

During a phase change, the temperature

• increases
• decreases
• fluctuates
• stays the same

At what temperature is this substance melting?

• 50C
• 100C
• 0C