Module 11 Lesson 4: Phase Changes

The phase change that converts a solid directly to a gas is also known as

• sublimation

• deposition

• melting

• vaporization

The point on a phase diagram in which solid, liquid, and gas can coexist is called

• triple point

• critical point

• melting point

• boiling point

The melting point of a substance is equivalent to the

• freezing point

• boiling point

• triple point

• critical point

In the phase diagram, the blue line represents which possible phase change?

• vaporization

• deposition

• melting

• sublimation

In the phase diagram, which phase of matter would water be at 200 degrees C and 200 atmospheres of pressure?

• solid

• liquid

• gas

• plasma

When vaporization occurs only at the surface of a liquid, we call that

• evaporation

• boiling

• condensation

• sublimation

Which of the following phase changes is endothermic (gaining / absorbing energy)?

• vaporization

• deposition

• freezing

• condensation