2026-02-24 19:28

Status: #new

Tags: #chemistry #cram #molecules

Intramolecular and Intermolecular Force

Electromagnetic Forces

Chemical Bonds

• Determines chemical properties
• Opposites attract, sameness repel etc.
• Also known as Intramolecular Force

Intramolecular Force

• In chemical reactions, the process of getting broken and formed

Intermolecular Force (IMF)

• State of matter change (not chemical)
• A physical change

London Dispersion Force (LDF)

• Exists in all molecules
• Compare the total ${\mathrm{e}}^{-}$ in a molecule
• More total ${\mathrm{e}}^{-}$ = stronger LDF

Dipole-Dipole

• Exists only in polar molecules
• Stronger IMF than LDF
• Larger $\mathrm{\Delta }EN$ = stronger Dipole-Dipole

Hydrogen Bonding

• Type of Dipole-Dipole
• Only occurs when a N O or F atom is directly bonded with a H atom

Implications of IMF

IMF process Steps

References

Polarity Determination
1.6 VSEPR
1.5 Metallic, Covalent Bonds and Polarity
1.3 Atomic Properties