What happens to acetone when heated?

Answer 1

Acetone will either evaporate or ignite (catch fire) when heated. At room temperature it evaporates quickly but will do so when hot. When exposed to very high temperatures it will catch fire.

Answer 2

When acetone is heated, it evaporates and turns into a gas. Acetone has a low boiling point of 56 degrees Celsius, so it easily transitions from a liquid to a gas when heated.