water   Water is a gas when it is steam. It condenses to liquid, becoming water. It becomes solid when it freezes, and then becomes liquid again as it melts. The entire pro â¦ cess depends on temperature. The molecular structure of water does not change throughout all these changes.
Volatile Definition: Volatile refers to a substance that vaporizes readily. Volatility is a measure of how readily a substance vaporizes. By Anne Marie Helmenstine, Ph.D.
1 the state in which a substance exhibits a characteristic readiness to flow with little or no tendency to disperse and relatively high incompressibility. 2  a substance in the fluid state of matter having no fixed shape but a fixed volume.  a substance that is liquid at room temperature and pressure.