Alulnyomás
Alulnyomás, also known as sublimation, is a phase transition process where a solid substance transitions directly into a gas, bypassing the liquid phase. This phenomenon occurs when the temperature and pressure conditions are such that the solid's vapor pressure exceeds the ambient pressure. Sublimation is commonly observed with water, where ice (solid water) turns directly into water vapor (gas) without melting into liquid water. This process is also seen with other substances like dry ice (solid carbon dioxide) and iodine.
The process of sublimation is governed by the principles of thermodynamics, specifically the Clausius-Clapeyron relation, which
Sublimation has various applications in different fields. In chemistry, it is used for the purification of
Despite its practical uses, sublimation also has environmental implications. For instance, the sublimation of certain pollutants