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
What is Deposition?
Change from gas to solid
What occurs at room temperature with the element Iodine and the molecule Carbon Dioxide?
Deposition
What will change directly from a solid to gas at room temperature?
Solid Carbon Dioxide (Dry Ice)