Warming Curves

Multiple Choice

Which is true about melting?

• Potential energy increases

• Kinetic energy increases

• Potential energy decreases

• Potential energy decreases

Multiple Select

Q=mcΔT is used for which parts of the warming curve?

• Q1

• Q2

• Q3

• Q4

• Q5

Multiple Choice

a) Identify the phase of water at each section.

• A-B: solid

  C-D: liquid

  E-F: gas

• A-B: gas

  C-D: liquid

  E-F: solid

• A-B: liquid

  C-D: solid

  E-F: gas

• I have no idea

Multiple Choice

b) What is the temperature at

• Point B = 100°C

  Point C = 100°C

  Point D = 0°C

  Point E = 0°C

• Point B = 0°C

  Point C = 0°C

  Point D = 100°C

  Point E = 100°C

• Point B = 100°C

  Point C = 0°C

  Point D = 0°C

  Point E = 100°C

• I have no idea

Multiple Select

c) Which areas of the warming curve is temperature changing?

• A-B

• B-C

• C-D

• D-E

• E-F

Multiple Select

d) Which sections of the warming curve indicate the location where water is going through a phase change?

• A-B

• B-C

• C-D

• D-E

• E-F

Multiple Choice

e)   How is going from B → C different from going form C → B?

• B-C melting (endo)

  C-B freezing (exo)

• B-C freezing (exo)

  C-B melting (endo)

Multiple Select

f)   Which sections of the warming curve would you use the equation Q = mc△T?

• A-B

• B-C

• C-D

• D-E

• E-F

Multiple Choice

g)   Which section(s) of the curve would you use: 

        Q = mHf ______       

• A-B

• B-C

• C-D

• D-E

• E-F

Multiple Choice

g)   Which section(s) of the curve would you use: 

       Q=mHv _______

• A-B

• B-C

• C-D

• D-E

• E-F

Multiple Select

h)   Which set of points go in the direction for an 

    exothermic process? 

• D - C 

• B - C

• A - B

• D - E

• B - A