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.
Volatile Definition. In chemistry, the word volatile refers to a substance that vaporizes readily. Volatility is a measure of how readily a substance vaporizes or transitions from a liquid phase to a gas phase. However, the term can also be applied to the phase change from solid state to vapor, which is sublimation.