Intermolecular Forces Flashcards
1
Q
Types of intermolecular forces
A
- hydrogen bonds
- Permanent dipole dipole interactions
- London forces
2
Q
Where do London forces occur
A
ALL simple covalent molecule
Separate atoms in noble gases
3
Q
Factors affecting London forces
A
Amount of electrons
Shape of molecule
4
Q
Anomalous properties of ice
A
Less dense than water
High boiling points
Molecules held apart by hydrogen bonds
5
Q
Where does hydrogen bonding occur
A
Compounds that have a hydrogen attached to nitrogen oxygen or flourine
6
Q
Where do permanent dipole interactions occur
A
Polar molecules
7
Q
Properties of permeant dipole interactions
A
Stronger than London forces
High boiling points
Asymmetrical bonds
8
Q
Formation of a permeant dipole
A
Unequal distribution of electrons in a bond
9
Q
Why is average bond enthalpy important
A
Larger the average bond the stronger the covalent bond
