IB Chemistry Topic 4.4 Intermolecular forces

IB Chemistry Topic 4.4 Intermolecular forces
The different types of intermolecular forces - London dispersion forces, dipole-dipole forces, and hydrogen bonding. How the different intermolecular forces cause different physical properties. How to analyse two different compounds to determine their differences in physical properties.

0:20 Intermolecular forces IMF
0:47 London dispersion forces
2:00 Dipole-dipole forces
2:36 Hydrogen bonding
3:26 IMF and physical properties
5:11 Example problems comparing molecules and IMF

4.4 Intermolecular forces SL
• Intermolecular forces include London dispersion forces, dipole-dipole forces and hydrogen bonding.
• The relative strengths of these interactions are London dispersion forces less than dipole-dipole forces less than hydrogen bonds.
• Deduction of the types of intermolecular force present in substances, based on their structure and chemical formula.
• Explanation of the physical properties of covalent compounds - volatility, electrical conductivity and solubility, in terms of their structure and intermolecular forces.

Connect with me:

[Brad-qwte]

@3:05 the arrow you drew in for the dipole moment is facing the wrong way, unless you meant the attraction is towards the other oxygen

[veerkejriwal]

at 5:35, for the you drew between O and H, shouldn't it be hydrogen bonding

[carlosm]

For increasing the London forces, by large radius you mean the further the atoms are away from each other by their molecular weight right?