Solid,Liquid,Gas
Solid,Liquid,Gas
Solid,Liquid,Gas
Phase Change
Overall
100
Particles do not move fast enough to overcome the strong _____________ between them.
Attraction
100
Formed when electrons dissociate from the nucleus. The fourth state of matter
Plasma
100
This state has no definate shape or volume? Volume is determined by the size of the container
Gas
100
Phase change from a liquid to a gas is called what?
Vaporization
100
The forces of attraction are so weak in this state of matter that they can be ignored.
Gas
200
What is the major difference between the 3 states of matter?
Different particle arrangements.
200
The temperature at which a solid changes to a liquid.
melting point
200
Number of elements on the periodic table that are gaseous state at room temperature.
What is 10
200
True or False? Phase changes are reversible?
True. Water can freeze and melt back to a liquid.
200
Phase changes are ____________ changes.
Physical
300
During what phase change do the molecules become more orderly?
Freezing
300
The reason that liquids "flow"
particles are close together but can slide past each other in order to "flow"
300
What is the process of a gas cooling to a liquid known as?
Condensation
300
Phase change where a gas changes directly to a solid
Deposition
300
Is a phase change from a liquid to a gas endothermic or exothermic?
Endothermic – It requires energy to be absorbed for it to happen.
400
These types of solids have no order to their structure.
amorphous
400
The state of a substance that conforms to its container, is highly compressible and easily flows.
Gas
400
The reason why insects can walk on water.
Surface Tension
400
List all 6 phase changes and indicate whether the phase is endothermic or exothermic.
Exothermic: Deposition, Condensation, Freezing Endothermic: Melting, Vaporization, Sublimation
400
The energy required to rearrange the molecules of water from ice to liquid water is known as _______________
Heat of fusion
500
The rising of a liquid through a narrow space against gravity.
What is capillarity?
500
These forces are responsible for the meniscus that forms when water is in a tube.
Cohesion and Adhesion
500
The point on the phase diagram where the density of the gas and liquid become equal.
Critical Point
500
When CO2 goes straight from a solid to a gas, this is called?
Sublimation
500
Water freezes at ____ ° C and boils at _____ ° C.
0 100
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