Thermal Energy Transfer Heating Cooling Curves

Between which points is the temperature of the substance remaining constant?

• A-B only

• A-B, C-D, and E-F

• B-C only

• B-C and D-E

Tags

NGSS.MS-PS1-4

The melting point of the sample is

• -60 ºC

• 20 ºC

• 60 ºC

• 100 ºC

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which letter indicates where water is in both the solid and liquid phase at the same time?

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS1-4

In which region(s) does temperature increase?

• Region C only

• Regions B and D

• Regions A, C, and E

• Regions A and B

Tags

NGSS.MS-PS1-4

In which region(s) of the heating curve would water be a liquid and a gas at the same time?

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Describe the substance at letter A.

• Solid

• Liquid

• Melting

• Evaporating

Tags

NGSS.MS-PS1-4

How many states of matter are present during line segment BC?

• One

• Two

• Three

• Depends on the temperature

Tags

NGSS.MS-PS1-4

At which letter is the substance changing its state of matter?

• A only

• A, C, and E

• D and E

• B and D

Tags

NGSS.MS-PS1-4

NaCl was heated starting at an initial temperature of 0°C. The heating curve is shown in the picture. What is the melting point of this substance?

• 0°C

• 801°C

• 1000°C

• 1465°C

Tags

NGSS.MS-PS1-4

Describe the substance at letters D.

• Gas

• Liquid

• Melting

• Evaporating

Tags

NGSS.MS-PS1-4