2023 phase changes

When the temperature of matter increases the particles...

• speed up and move closer

• speed up and move farther apart

• slow down and move farther apart

• pressure decreases

In order for a change of matter to take place, ______must be added or removed.

• Heat

• Volume

• Particles

• Potential energy

This term means: Heat will be absorbed/added

• Exothermic

• Sublimation

• Endothermic

• Freezing

What will happen to the kinetic energy of the particles during an endothermic phases change?

• Increases in movement

• They re-form bonds

• Decreases in movement

• Bonds will join other paricles

This term means: Heat will be given off/released

• Endothermic

• Vaporization

• Deposition

• Exothermic

What will happen to the kinetic energy of the particles during an exothermic phases change?

• Decrease in movement

• Bonds will break

• Increase in movement

• It will skip the liquid phase

Which 2 phase changes are endothermic?

• Melting

• Freezing

• Vaporization/

  evaporation

• Condensation

Which phase change occurs:

when water changes from a liquid to a gas?

• Condensation

• Melting

• Vaporization

• Freezing

Which phase change occurs:

when water changes from a solid to a liquid?

• Condensation

• Melting

• Freezing

• Vaporization

Which phase change occurs:

when water changes from a gas to a liquid?

• Sublimation

• Vaporization

• Condensation

• Melting