Intermolecular Forces Flashcards
Intermolecular Forces
binding forces between particles
Ion-Dipole Forces
forces result when an ionic compound dissolves in a polar solvent.
Dipole-dipole Forces
between polar molecules
Hydrogen Bond
between hydrogen and a highly electronegative atom with lone electron pairs (N, O, F)
London Dispersion Force
present in all molecules
Involves temporary dipoles
London Dispersion Force
Involves permanent dipoles
Dipole-dipole
Involves permanent dipoles exclusive to N,O,F
Hydrogen bond
Involves full on ion and dipole
Ion-dipole
Melting and Boiling Point
The stronger the intermolecular forces, the higher the MP and BP.
Cohesion
attraction between like molecules
Adhesion
attraction between different molecules
High adhesion between water and test tube
creates concave surface
Viscosity
The stronger the intermolecular forces, the more viscous
Surface Tension
The stronger the intermolecular forces, the more higher the ST
