An Introduction to Intermolecular Forces and States of Matter (12.1.1)

Question 1

• The state of a substance depends on the energy of the system and attractive forces between molecules.

Answer 1

• The state of a substance depends on the energy of the system and attractive forces between molecules.

Question 2

• There is a distribution of energies in the molecules of a sample; some have high kinetic energies, allowing them to leave the liquid phase.

Answer 2

• There is a distribution of energies in the molecules of a sample; some have high kinetic energies, allowing them to leave the liquid phase.

Question 3

• The intermolecular forces exhibited by a molecule are influenced by its dipole moment.

Answer 3

• The intermolecular forces exhibited by a molecule are influenced by its dipole moment.

Question 4

• The direction of a phase change is reversible, depending on whether energy is added to or removed from the system.

Answer 4

• The direction of a phase change is reversible, depending on whether energy is added to or removed from the system.