Intermolecular Forces Flashcards
1
Q
What are intermolecular forces?
A
The attraction/repulsion between neighbouring molecules.
All intermolecular forces = Van der Waals forces.
2
Q
What are London Dispersion forces?
A
Weak forces present between non-polar covalent molecules.
3
Q
What are Dipole-Dipole forces?
A
Permanent forces between polar molecules.
4
Q
How do Dipole-Dipole forces work?
A
Polar molecules have a permanent positive end and a permanent negative end. Dipole-Dipole forces occur when these ends attract each other.
5
Q
What is Hydrogen bonding?
A
Special type of Dipole-Dipole forces.
Strongest form of intermolecular force.
6
Q
When will hydrogen bondings form?
A
When compounds have molecules directly bonded to fluorine, oxygen or nitrogen.
