Phase Change Activity Concept Checker

A sample of water at a temperature of 70^oC is

• transitioning between the solid and liquid state.

• transitioning between the liquid and solid state.

• in the solid state.

• in the liquid state.

• in the gas state.

Identify the false statement

• The heating of liquid water from its melting point to its boiling point is represented by a diagonal line on a heating curve.

• The boiling of water occurs at a constant temperature.

• When heat is added to a sample of water, it always increases its temperature.

• The melting of water occurs at a constant temperature.

A sample of water at a temperature of 100^oC is

• in the solid state

• in the liquid state

• in the gas state

• transitioning between the solid and the liquid state

• transitioning between the liquid and the gaseous state

The heating curve shows five labeled regions. Which region represents the phase of matter with virtually no intermolecular forces?

• Region A

• Region B

• Region C

• Region D

• Region E

The heating curve shows five labeled regions. Which region represents the phase of matter where particles move randomly about the entire container?

• Region A

• Region B

• Region C

• Region D

• Region E

The heating curve shows five labeled regions. Which regions represent the phase transitions (melting and boiling)?

• Region A

• Region B

• Region C

• Region D

• Region E

The heating curve shows five labeled regions. Which region represents the phase of matter in which particles have the highest level of organization?

• Region A

• Region B

• Region C

• Region D

• Region E

The heating curve shows five labeled regions. Which regions represent the liquid and gas phases?

• Region A

• Region B

• Region C

• Region D

• Region E

The heating curve shows five labeled regions. Which region represents the transition from the solid to the liquid state?

• Region A

• Region B

• Region C

• Region D

• Region E

The heating curve shows five labeled regions. Which region represents the transition from the solid to the liquid state?

• Region A

• Region B

• Region C

• Region D

• Region E