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Notable examples include sublimation of dry ice at room temperature and atmospheric pressure, and that of solid iodine with heating. The reverse process of sublimation is deposition (also called desublimation), in which a substance passes directly from a gas to a solid phase, without passing through the liquid state. [4]
In thermodynamics, the enthalpy of sublimation, or heat of sublimation, is the heat required to sublimate (change from solid to gas) one mole of a substance at a given combination of temperature and pressure, usually standard temperature and pressure (STP). It is equal to the cohesive energy of the solid.
A sublimatory [1] [2] or sublimation apparatus is equipment, commonly laboratory glassware, for purification of compounds by selective sublimation. In principle, the operation resembles purification by distillation , except that the products do not pass through a liquid phase .
Outgassing is a challenge to creating and maintaining clean high-vacuum environments.NASA and ESA maintain lists of materials with low-outgassing properties suitable for use in spacecraft, as outgassing products can condense onto optical elements, thermal radiators, or solar cells and obscure them.
Protein folding problem: Is it possible to predict the secondary, tertiary and quaternary structure of a polypeptide sequence based solely on the sequence and environmental information? Inverse protein-folding problem: Is it possible to design a polypeptide sequence which will adopt a given structure under certain environmental conditions?
Electron micrograph images of fumarolic minerals at Mutnovsky volcano, Kamchatka. Research on the mineralogy of fumarole minerals has been conducted in Central America, Russia and Europe, [19] with detailed publications on Izalco in El Salvador, [28] Eldfell in Iceland, [29] Vesuvius [20] where research goes back to the early 19th century [30] and Vulcano in Italy, Mount Usu in Japan, Kudryavy ...
The formation of frost is an example of deposition; all but saying that "deposition" is never an instance of sublimation. The text of the article in between gives fairly specific examples of solid to vapor, with the only reference to deposition being that of deposition after S->V conversion, in the case of printing by dye sublimation.
One example of deposition is the process by which, in sub-freezing air, water vapour changes directly to ice without first becoming a liquid. This is how frost and hoar frost form on the ground or other surfaces. Another example is when frost forms on a leaf. For deposition to occur, thermal energy must be removed from a gas.