Intramolecular Forces vs. Intermolecular Forces Flashcards
Intramolecular forces are forces
Intramolecular forces are forces within a molecule and are usually covalent bonds
Covalent bonds are formed when the outer electrons of two atoms are shared
examples of intramolecular forces
Single, double, triple and co-ordinate bonds are all types of intramolecular forces
plus ionic metallic
What are intermolecular forces
Molecules also contain weaker intermolecular forces which are forces between the molecules
There are three types of intermolecular forces:
Induced dipole – dipole forces also called van der Waals or London dispersion forces
Permanent dipole – dipole forces are the attractive forces between two neighbouring molecules with a permanent dipole
Hydrogen Bonding are a special type of permanent dipole - permanent dipole forces
What forces are stronger intramolecular or intermolecular
Intramolecular forces are stronger than intermolecular forces
For example, a hydrogen bond is about one tenth the strength of a covalent bond
The strengths of the types of bond or force are as follows: strongest to weakest(bottom)
covalent bonds
hydrogen bonds
permanent dipole - permeant dipole forces
instantaneous dipole- induced dipole forces