8D Heating & Cooling Curves

Given the heating curve of a solid being heated at a constant rate, what is the boiling point of this substance?

• 20°C

• 50°C

• 110°C

• 170°C

Tags

NGSS.MS-PS1-4

Given the heating curve of a solid being heated at a constant rate, how much total time was required to boil this substance after it reached its melting point?

• 3 minutes

• 4 minutes

• 10 minutes

• 14 minutes

Tags

NGSS.MS-PS1-4

Given the heating curve of a solid being heated at a constant rate, during which time segment was there a change in kinetic energy?

• between min 3 and 4

• between min 4 and 5

• between min 10 and 12

• between minutes 14 and 15

Tags

NGSS.HS-PS3-2

NaCl(s) was heated up 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

NaCl(s) was heated up starting at an initial temperature of 0°C. The heating curve is shown in the picture.During which segments of the diagram is potential energy constant? (Check all that apply)

• AB

• BC

• CD

• DE

Tags

NGSS.HS-PS3-4

NaCl(s) was heated up starting at an initial temperature of 0°C. The heating curve is shown in the picture.During which segments of the diagram is potential energy increasing? (Check all that apply)

• AB

• BC

• CD

• DE

Tags

NGSS.HS-PS3-4

NaCl(s) was heated up starting at an initial temperature of 0°C. The heating curve is shown in the picture. Which phase(s) of matter are present during segment BC? (Check all that apply)

• solid

• liquid

• gas

Tags

NGSS.MS-PS1-4

NaCl(s) was heated up starting at an initial temperature of 0°C. The heating curve is shown in the picture. Which phase change is occurring during segment DE?

(a)  

Given the heating curve of water, what is happening to potential and kinetic energy during segment CD?

• the potential energy and kinetic energy both increase

• the potential energy increases while the kinetic energy decreases

• the potential energy is constant while the kinetic energy increases

• the potential energy increases while the kinetic energy is constant

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Given the heating curve for water, during which line segment could I find water in both the solid and liquid phase at the same time?

• AB

• BC

• CD

• DE

• EF

Tags

NGSS.MS-PS1-4