intermolecular forces

London Forces / Dispersion Forces weakest intermolecular forces Instant dipole Non-polar the strength of the forces is influenced by the size of molecules, number of atoms in molecules and the shape of molecules LEP = 0

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London Forces / Dispersion Forces

weakest intermolecular forces Instant dipoleNon-polar the strength of the forces is influenced by the size of

molecules, number of atoms in molecules and the shape of molecules

LEP = 0

London Forces / Dispersion Forces

Hydrogen Bonds & Dipole-dipole

Dipole – dipole Attractions Polar Permanent dipole (poles partially positive & poles

partially negative)

Hydrogen BondsPolarStrongest intermolecular forcesFormed between H-N, H-O, H-F (F, O, N)

PHYSICAL PROPERTIES INFLUENCED BY INTERMOLECULAR FORCES

Boiling Point The greater the forces, the greater the boiling point Surface TensionThe stronger the forces in a liquid substance, the greater

the surface tension produced Viscosity The stronger the forces of the liquid substance, the greater the viscosity will be

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Intermolecular Forces

Intermolecular Forces:

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1 Intermolecular Forces Chemistry. 2 Intermolecular Forces Intermolecular forces are attractive forces between molecules. Intramolecular forces hold atoms

Intermolecular Forces Topic 4.3. Intermolecular Forces Intramolecular forces – refer to the forces…

Intermolecular Forces. Intermolecular forces are weak, short-range attractive forces between atoms or molecules. Intermolecular forces ultimately derive

Intermolecular Forces