Phase Changes Answers
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Consider the temperature versus time graph below.At what temperature is the boiling point of this substance?
A
at 0°CB
between 0°C and 100°CC
at 120°CD
above 120°C2
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In which phase transition do molecules move directly from a state involving vibration of particles in a fixed position to a state involving random movement of high-speed particles?
A
evaporationB
sublimationC
freezingD
deposition3
Which example involves a phase change in which heat energy is released by the substance?
A
freezing ice creamB
cooking a pot of soupC
melting ice under sunlightD
watching frost disappear into air4
Consider the temperature versus time graph below.In which region is the substance in both the solid phase and the liquid phase?
A
1B
2C
3D
45
Which best describes the energy change that takes place during deposition?
A
Heat energy is released by the substance.B
Heat energy is maintained by the substance.C
Heat energy is slowly gained by the substance.D
Heat energy is quickly absorbed by the substance.Did you find these answers helpful?
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