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Summary on temperature phase changes throughout forms of matter
The graph shows a cooling curve for an unknown substance. What is happening during segment DE?
freezing
What form of matter has molecules that slide past each other and stay close together without a regular pattern?
liquid
What phase is occurring in segment DE?
evaporation
In a solid, the particles…
vibrate in place
Vapor is the air accumulates as clouds. This phase change is an example of…
condensation
Temperature is the measure of average ______ energy in a substance
kinetic
The opposite phase change of melting is…
freezing
When molecules flow around each other, they are in the ________ phase
liquid
Based on this graph of an unknown substance, what state of matter is the substance at point F?
gas
What phase is the substance in at segment AB?
solid
The faster the molecules move…
the higher the temperature
Between which points is the temperature of the substance constant?
BC and DE
At which point is the substance a solid?
A
When the temperature of a matter decreases, the particles…
slow down and move closer together
When the temperature of a matter increases, the particles…
speed up and move farther apart
Which phase change is taking place if the substance is losing energy in segment CB (think of the heat curve as a cooling curve)?
freezing
Which form of matter has fast moving particles and no definite shape?
gas
_________ has no shape, but a definite volume
liquid
What is the term for a phase change from a gas to a liquid?
condensation
A substance’s heating curve is shown in the photo. What is the boiling point?
60 C
What is the term for a phase change from a solid to a gas?
sublimation
What is the term for a phase change from a gas to a solid?
deposition
What is the term for a phase change from a liquid to a gas?
vaporization
What is the term for a phase change from a gas to a liquid?
condensation
What is the term for a phase change from a solid to a liquid?
melting
What is the term for a phase change from a liquid to a solid?
freezing
Note 
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