UNIT 3.3 SOLIDS, LIQUIDS, AND GASES
Chemistry is the study of matter and interactions. Chemistry overlaps with many other sciences.
Below is the contents for this sub unit.
SOLIDS, LIQUIDS, AND GASES
Solids:
Crystalline - particles arranged in regular 3D structure (array or lattice)
Amorphous - no regular pattern
Motion of particles is limited and the structure is determined by interparticle interaction and ability of particles to pack together.
Metals have a set volume and shape.
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Liquids:
Particles in close contact with each other, continually moving and colliding. Arrangement of atoms influenced by the strength and type of intermolecular forces (polarity, hydrogen bonding, and temperature)
Liquids have a set volume but not a set shape.
​
Gases:
Particles in constant motion. Frequency of collisions depend on temperature, pressure, and volume. Intermolecular forces are minimum for gas phase. Gas does not have set volume or shape.
​
Review phase diagrams in the 'Energy' section of Chem 1.
SOLIDS, LIQUIDS, AND GASES
Solids:
Crystalline - particles arranged in regular 3D structure (array or lattice)
Amorphous - no regular pattern
Motion of particles is limited and the structure is determined by interparticle interaction and ability of particles to pack together.
Metals have a set volume and shape.
​
Liquids:
Particles in close contact with each other, continually moving and colliding. Arrangement of atoms influenced by the strength and type of intermolecular forces (polarity, hydrogen bonding, and temperature)
Liquids have a set volume but not a set shape.
​
Gases:
Particles in constant motion. Frequency of collisions depend on temperature, pressure, and volume. Intermolecular forces are minimum for gas phase. Gas does not have set volume or shape.
​
Review phase diagrams in the 'Energy' section of Chem 1.