Liquid Properties

Which of the following properties is not affected by intermolecular forces?

• Color

• Melting point

• Surface tension

• Viscosity

What is the relationship between vapor pressure and intermolecular forces?

• Vapor pressure does not depend upon intermolecular forces, only the strength of chemical bonds.

• Stronger intermolecular forces cause particles to repel each other, raising the vapor pressure.

• Stronger IMFs cause particles to stick together, lowering the vapor pressure.

• Intermolecular forces cause all liquids to have the same vapor pressure.

Which of the following factors plays an important role in the identification of specific intermolecular forces in a molecule?

• bond type
• density
• solubility
• molecular polarity

Examples of an intermolecular force include

• london disperson

• hydrogen bonding

• dipole dipole

• all of the above

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

• higher

• lower

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

• Higher

• Lower

• The same

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

The energy of movement is ___.

• potential energy

• kinetic energy

• mechanical energy

The more energy that particles have, the ___ they move.

• slower

• faster

The force of attraction between molecules is ___.

• intermolecular forces

• bridge forces

• chemical bonds