What is the process of converting liquid water to gas water called?

The process of converting liquid water to gas water is referred to as evaporation. This process occurs when water molecules gain enough energy to overcome intermolecular forces and transition from the liquid phase to the gaseous phase. Evaporation commonly occurs at any temperature but is accelerated by factors such as increased temperature, higher air movement, and lower humidity.

In a practical sense, you can observe evaporation when water in a shallow dish gradually disappears over time, especially on a warm day. Understanding evaporation is important in various maintenance tasks, including managing humidity levels in buildings or when dealing with water treatment processes.