individual molecules in that substance
becomes forceful enough that the electrical
forces holding them in place are overpowered.
The fixed structure then breaks up, leaving the
molecules free to move from one place to
another. However, most of the molecules are
still moving slowly enough that they remain
influenced by the forces that once
immobilized them, and so they remain loosely
associated with each other. They’re free to
move, but move together. This fluid but
cohesive phase is a liquid.
Gases
If the temperature continues to rise and the
molecules move with a kinetic energy high
enough that they can break away from each
other’s influence completely and move freely
into the air, the substance become a different
kind of fluid, a gas. The most familiar
transition from the liquid phase to the gas