IMF

Which type of IMF is responsible for the attraction pictured above?

• Dipole-Dipole Interaction

• Ion-Dipole Interaction

• Hydrogen Bonds

• Covalent Bond

• Ionic Bond

If a liquid has high viscosity (thick), it probably has:

• strong IMF

• weak IMF

Tags

NGSS.HS-PS1-3

The force of attraction between nonpolar molecules:

• Hydrogen Bonding

• Dipole - Dipole Forces

• LDF

• Ionic Forces

What letter on the diagram represents a substance only in the solid phase?

• A

• B

• C

• D

Tags

NGSS.HS-PS3-4

Which container has the greatest Intermolecular Force between Molecules?

• red

• yellow

• blue

Which compound has the strongest IMF

• HOH

• CH₄

• C₂H₆

• CH₃OH

Xenon has a greater atomic weight than neon. Xe has 131.3 amu while Ne has 20.2 amu. The boiling points are 166.1K and 27.3K, respectively. How do intermolecular forces account for the difference?

• Dipole-dipole interaction is greater in Xe than Ne so more energy is needed to break the bonds.

• H-bonding is greater for substances with higher atomic weight so greater energy is needed to change Xe to vapor.

• Atomic weight increases the chance of lesser dispersion forces so greater energy is needed to separate Xe atoms to change to vapor

• London dispersion forces are greater in substances with heavier atomic weight so greater energy is needed to separate

  the atoms of Xe than Ne.

Intermolecular Forces are the forces that exist

• Between two or more molecules

• Within a single molecule

• Only in molecules containing carbon

• In all molecules

Tags

NGSS.HS-PS2-6

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

________________ an intermolecular force of attraction that occurs when a temporary dipole of one atom induces polarity in a neighboring atom. They form due to random fluctuations in the density of the electron cloud surrounding the nucleus. The weakest type of intermolecular force.

• London Dispersion Forces

• Hydrogen Bonding

• Dipole-Dipole

• Ionic