CHEM A U8 REVIEW: ELECTROSTATIC FORCES

Which refers to the temperature at which a substance will turn from liquid to gas?

• Melting point

• Vapor pressure

• Boiling point

• Surface tension

Which of the following is NOT a bulk property of matter?

• Melting point

• Boiling point

• Kinetic energy

• Surface tension

_____ has the weakest electrostatic forces between molecules.

• Water

• Butane

• Propane

• Pentane

_____ has the strongest electrostatic forces between molecules.

• Water

• Butane

• Propane

• Pentane

True or false: Substances have different boiling points due to differences in molecular structure.

• True

• False

True or false: Gases have stronger electrostatic forces between molecules than solids.

• True

• False

True or false: Solids have stronger electrostatic forces between molecules than liquids.

• True

• False

7) The boiling point of ethanol is lower than the boiling point of water. Based on this information, which conclusion can be drawn about the two substances?

• The intermolecular forces in ethanol are stronger than the intermolecular forces in water.

• The intermolecular forces in water are stronger than the intermolecular forces in ethanol.

• The intramolecular bonds in ethanol are stronger than the intramolecular bonds in water.

• The intramolecular bonds in water are stronger than the intramolecular bonds in ethanol.

True or false: Molecules need low kinetic energy to vaporize.

• true

• false

Temperature is a measure of the average _____ of a substance's particles.

• vapor pressure

• surface tension

• potential energy

• kinetic energy