Intramolecular vs. Intermolecular Forces

Intermolecular forcesIntramolecular forces
Intermolecular forces are the forces present between atoms of two different moleculesIntramolecular forces are the forces present between the atoms of the same molecule.
Forces between two moleculesForces within a molecule
Weaker forcesStronger forces
In these forces, molecules are suspended and gripped in a substance.In these forces, atoms are gripped in a molecule.
Physical parameters such as melting points, boiling points and physical states such as solid, liquid or gas are determined by such forces.Chemical parameters such as the reactivity, the flammability or susceptibility to corrosion etc of a substance are determined by such forces.
These forces are classified into:
Ion dipole forces, Ion induced dipole forces, Dipole-induced dipole forces, dipole-dipole forces including Hydrogen bonding and London dispersion forces.
These forces are classified into:

Ionic Bond, Covalent Bond and Metallic Bond.

These are sometimes named as nonbonding forces.These are sometimes named as bonding forces.
Persist for shorter life span of moleculePersist for longer life span of molecule
Physical changes can affect such forces.Physical changes cannot affect such forces usually.
Liable to bulk properties of matterLiable to stabilize the molecule
Intermolecular bond distance can be longerIntramolecular bond length is shorter.

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