Phases (states of matter)
Gas
- particles are very mobile (km / s)
-
large average interparticle distance
-
fills container, no surface, low r
eg. H2 = homonuclear diatomic
Liquid - particles are
mobile (mm / s)
-
small interparticle distance
-
fills container, forms a surface
Solid - particles non mobile and in contact
- fixed shape, high r
Amorphous - SiO2 - glass
Crystalline -
SiO2 - quartz