Heating & Cooling Curves

What line segment represents only the solid state?

• A-B
• B-C
• C-D
• D-E

Which segment represents the heat of fusion?

• A-B
• B-C
• C-D
• D-E

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In which segment is the kinetic energy remaining constant?

• A-B
• B-C
• C-D
• E-F

Tags

NGSS.MS-PS3-1

Which process takes the longest to occur?

• melting
• boiling
• freezing
• heating the solid

Tags

NGSS.MS-PS1-4

What state(s) of matter are present at D-E?

• Solid-liquid
• Liquid
• Liquid-gas
• Gas-Solid

Tags

NGSS.MS-PS1-4

What is happening to the potential energy during C-D?

• increasing
• decreasing
• staying the same

Tags

NGSS.MS-PS3-2

What is happening to the potential energy during B-C?

• increasing
• decreasing
• staying the same

Tags

NGSS.MS-PS3-2

What phase change occurs at D-E?

• melting
• condensing
• boiling
• freezing

Tags

NGSS.MS-PS1-4

What is the freezing point for this substance?

• 60 °C
• 40 °C
• 80 °C
• 100 °C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What would be the effect on the particles if more heat is supplied to the system?

• They would slow down
• They would stop moving
• They would speed up
• There would be no effect

Tags

NGSS.HS-PS1-5

NGSS.HS-PS3-4