Compare and Contrast Changes in State of Matter Flashcards
Matter can exist in different states determined by:
Environmental Conditions
___ make up all Matter
Molecules
Matter exists in 4 Phases:
Solid, Liquid, Gas, and Plasma
Above absolute zero, molecules are in:
Constant Motion
According to the Kinetic Molecular Theory, molecular motion changes as:
Heat is added or removed
What overcomes the forces that hold Matter together?
Heat
As the temperature of a substance increases, the Intermolecular force that holds the molecules together are ___, causing:
Broken, causing the molecules to move away from each other
The amount of heat required for a phase change will or will not break the bonds within a molecule?
Will not
In ___, the molecules are packed together in a tight, orderly pattern; there is vibrational motion but no translational motion experienced by the molecules
Solids
The molecules in ___ are less ordered and exhibit both translational and vibrational motion
Liquids
___ molecules are rapidly moving and spread far apart
Gas
The phase of a substance depends on two conditions:
Temperature and Pressure
Increasing temperature has a tendency to move the particles of matter ___
Apart
Increasing pressure has a tendency to:
Pack them closer together
___ ___ has definite Volume and Shape
Solid Matter
___ has no definite Volume and Shape
Gas
___ ___ has definite Volume but no definite Shape, meaning it will conform to the shape of the container
Liquid Matter
Gases are highly ___ and subject to changes in Volume
Compressible
___ and ___ are generally Non-Compressible
Liquids and Solids
A change from solid to liquid (melting) requires an addition of heat, which causes:
The molecules to become more energized, which increases their vibrational and translational motion
Adding heat (energy) causes:
The forces holding particles together in a solid state to break
Adding ___ is also required to change matter from liquid to gas (boiling)
Heat
Removing ___ from matter is required to change gas to liquid (condensation) or liquid to solid (freezing)
Heat
An unusual phase change called ___ converts solid to gas
Sublimation