Heat Energy Question Preview (ID: 4656)

Review For Heat Energy, Includes Heating And Cooling Curve Questions Specific Heat Heat Of Fusion, Ect.[print questions]

As energy is converted from one form into another the total amount of heat energy
a) increases
b) decreases
c) remains the same

How do you determine the phase changes on a graph?
a) diagonal portions going up
b) diagonal portions going down
c) horizontal portions

What does the heat of fusion indicate?
a) energy needed for melting to occur
b) energy needed for vaporization to occur
c) energy needed for solidification to occur
d) a gas changing to a liquid

Which of the following have the highest average kinetic energy?
a) 10 ml of water at 20 degrees
b) 200 ml of water at 20 degrees
c) 150 ml of water at 55 degrees
d) 100 ml of water at 30 degrees

At STP, the difference between the freezing point and boiling point of water in Kelvin is
a) 180
b) 100
c) 273
d) 373

Which phase change represents sublimation?
a) solid to liquid
b) liquid to solid
c) liquid to gas
d) solid to gas

Which temperature represents absolute zero?
a) 0C
b) 0K
c) 273K
d) 273C

Which kind of energy is stored within a chemical sustance?
a) kinetic
b) activation
c) potential
d) free

As water vaporizes at STP, its temperature remains constant. Its potential energy
a) decreases
b) increases
c) remains the same

What phase change is endothermic?
a) solid to liquid
b) liquid to solid
c) gas to liquid
d) gas to solid

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