Intermolecular Forces

Intermolecular forces are the forces

• within molecules

• between molecules

In general, substances with stronger intermolecular forces have ________ boiling points than those with weaker forces

• Higher

• Lower

• The same

In general, substances with weaker intermolecular forces have ________ boiling points than those with stronger forces

• Higher

• Lower

• Forces and boiling point are not related

What explains the very high melting and boiling point of water

• Strong dipole-dipole bonds between water molecules
• Strong hydrogen bonds between water molecules
• Dispersion forces which are present in all molecules
• Asymmetrical shape of the polar bonds.

What intermolecular forces does H₂S have?

• Hydrogen Bonding

• Dispersion

• Dipole to Dipole

What intermolecular force does CH₄ have?

• Dipole to Dipole

• Hydrogen Bonding

• Dispersion

Which substance would have the weakest intermolecular forces of attraction?

• CH₄

• NaCl

• H₂O

• MgF₂

Tags

NGSS.HS-PS1-3

Intermolecular forces for: NH₃

• Dispersion Force

• Dipole dipole

• Hydrogen bonding

Intermolecular force present in PH₃?

• dipole dipole

• dispersion

• Hydrogen bonding

• ionic

Which substance has the weakest intermolecular forces?

• Substance A, boiling point of 75 °C

• Substance B, boiling point of 105 °C

• Substance C, boiling point of 25 °C

• Substance d, boiling point of 45 °C