Anita heats a beaker containing water. As the temperature of the water increases, which change to the water molecules occurs?
Select one:
The molecules separate into atoms of hydrogen and oxygen.
The molecules move at a faster rate.
The molecules become more massive.
The molecules expand and become wider.

The molecules move at a faster rate.

Explanation:

Temperature is directly proportional to the average kinetic energy of molecules, so when the temperature of water molecules increases, they have a higher average kinetic energy.

They move at a faster rate. The distance between the molecules only increases when they become gas where they break apart from the bondings with the other water molecules.