What is submation?

Answer 1

Sublimation is the process in which a solid transitions directly into a gas without passing through the liquid phase. This occurs when the temperature and pressure conditions are such that the solid's vapor pressure exceeds the surrounding pressure, allowing molecules to escape directly into the gas phase. Common examples of sublimation include dry ice (solid carbon dioxide) turning into carbon dioxide gas and the sublimation of ice in sub-zero temperatures. It is widely used in various applications, including freeze-drying and printing techniques.