Phases of matter and vapor pressure.

How do we describe phase changes?
What are the phases of matter?
The four phases of matter include:
oSolids
oLiquids
oGases
oPlasmas
A phase change involves a change in the physical state of a substance from one phase to another such as: or vice versa
oSolid- liquid
oLiquid- gas
oSolid - gas
Solids
The physical state of matter characterized by particles that appear to vibrate about fixed points. Particles of a solid (crystalline) are arranged in a compact, three dimensional pattern called a lattice. Because the particles of a solid are held together y strong attractive forces, solids hav…