Intermolecular Forces and London Dispersion

What are intermolecular forces?

• Forces of attraction or repulsion between neighboring particles.

• Forces that are not affected by distance between particles

• Forces between particles within the same molecule

• Forces that exist only in solids

What is another name for dispersion forces?

• Ionic bonding

• Hydrogen bonding

• Van der Waals forces

• London dispersion forces

How do London forces arise?

• Covalent bonds between atoms

• Permanent dipole moments in molecules

• Ionic bonding between atoms

• Temporary dipoles caused by electron distribution around atoms

Do London dispersion forces exist in all molecules?

• Yes

• Sometimes

• No

• Only in organic molecules

Hydrogen bonding occurs when hydrogen is bonded to N, O, or F.  Which of the following has hydrogen bonding?

• CBr₄
• NO₂
• H₂S
• NH₃

Intermolecular forces for: NH₃

• London Dispersion Force

• Dipole dipole

• Hydrogen bonding

Tags

NGSS.HS-PS1-3

Intermolecular forces for: CO₂

• London Dispersion Force

• Dipole dipole

• Hydrogen bonding

Intermolecular forces are the forces

• within molecules
• between molecules

The weaker the intermolecular forces of a substance the _____________ the boiling point

• higher

• lower

Tags

NGSS.HS-PS1-3

Ionic Bonding involves...

• The transfer of protons
• The transfer of nuetrons 
• The transfer of electrons
• None Of the above

Tags

NGSS.HS-PS1-2