1. Properties of the Liquid State: Cohesion and Adhesion
Cohesion: The intermolecular attraction between like molecules.
Adhesive attraction between liquid and surface
Adhesion: The intermolecular attraction between unlike molecules.
Liquid
Surface
Hg Droplet
H2O Droplet
Cohesive Forces > Adhesive Forces
Cohesive Forces < Adhesive Forces

2. Properties of the Liquid State: Capillarity
Adhesive Forces between glass surface and water molecules.
ForceAdhesive > ForceCohesive
....Liquid climbs up tube
Capillarity: Liquids filling a small tube against the pull of gravity

3. Properties of the Liquid State: Viscosity
Viscosity: A Liquid’s resistance to flow.
High Viscosity Polyglycerol
Low Viscosity Water
...a thick, viscous liquid.