Intermolecular Forces vs Intramolecular

Intermolecular Forces

By

The forces within the molecule

The bonds which hold the molecule together

• Covalent bonds

• Ionic Bonds

Intramolecular Forces

The forces between molecules

These forces hold more than one molecule to each other.

• London Dispersion Forces ​

• Dipole-Dipole Forces

• Hydrogen Bonds

Intermolecular forces

Intermolecular Forces vs Intramolecular Forces

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​The weakest Intermolecular forces

Found in all molecules 

   The electrons group on one side of the molecule or atom 

Inducing a dipole in neighbor atom and making them "sticky" 

The only force found in non-polar molecules

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London Dispersion Forces

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Forces between polar molecules 

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The positive end of one molecule is attracted to negative end of another 

Weak attractions: most melt and boil at low  temps 

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mostly gases and liquids at room temp

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​Dipole-Dipole Moment

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A strong dipole -dipole 

Occurs between molecules that have hydrogen bonded to Nitrogen, Oxygen or Fluorine

Terminal H atoms are basically unshielded protons

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​Hydrogen Bonds

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Multiple Choice

London Dispersion forces are found between what type of molecules?

• Polar covalent

• Nonpolar covalent

• Ionic Bonds

• All molecules

Multiple Choice

Hydrogen Bonds are a specific type of ________________

• London Dispersion force

• Dipole-Dipole

• Nonpolar covalent bond

• Polar covalent bond

Multiple Choice

The strongest intermolecular force in H₂S?

• London Dispersion Forces

• Dipole- Dipole moment

• Hydrogen Bonds

Multiple Choice

What is the polarity of H-N and what is the strongest intermolecular force?

• Polar covalent, dipole-dipole

• Polar covalent, Hydrogen bond

• Nonpolar covalent, dipole-dipole

• Nonpolar, London dispersion forces

Multiple Choice

What is the polarity of the molecule and what is the strongest intermolecular forces?

• Polar covalent, Dipole-Dipole

• Polar covalent,

  London Dispersion Forces

• Nonpolar Covalent, Dipole-Dipole

• Nonpolar Covalent, London Dispersion Forces