Multiple choice

What is happening to the particles when a liquid boils?

  1. They get bigger.

  2. They gain enough energy to become a gas.

  3. They lose energy and move closer together.

  4. They combine with different particles.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Boiling is a rapid phase transition from liquid to gas that occurs throughout the liquid. During this process, the particles absorb heat energy, move faster, and eventually gain enough kinetic energy to overcome the attractive forces holding them together as a liquid.

Keep practicing — related questions