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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 ] Technically, all solids may sublime, though most sublime at extremely low rates under usual conditions that are hardly detectable.
The transition from solid to liquid, and gas to liquid (shown by the white condensed water vapour). Other phase changes include: Transition to a mesophase between solid and liquid, such as one of the "liquid crystal" phases. The dependence of the adsorption geometry on coverage and temperature, such as for hydrogen on iron (110).
At pressures below 5.13 atm and temperatures below −56.4 °C (216.8 K; −69.5 °F) (the triple point), CO 2 changes from a solid to a gas with no intervening liquid form, through a process called sublimation. [a] The opposite process is called deposition, where CO 2 changes from the gas to solid phase (dry ice). At atmospheric pressure ...
This includes the latent heat of fusion (solid to liquid), the latent heat of vaporization (liquid to gas) and the latent heat of sublimation (solid to gas). [1] [2] The term was introduced around 1762 by Scottish chemist Joseph Black.
The sun causes material such as the ice inside comets to turn directly to a gas through a process called sublimation. That evaporation provides the comets with thrust. The thrust is evident by the ...
A typical phase diagram.The solid green line applies to most substances; the dashed green line gives the anomalous behavior of water. In thermodynamics, the triple point of a substance is the temperature and pressure at which the three phases (gas, liquid, and solid) of that substance coexist in thermodynamic equilibrium. [1]
What distinguishes silicon carbide from regular silicon chips is a chemical process called sublimation in which solids are converted into gases — and then back into solids.
For a liquid–gas transition, is the molar latent heat (or molar enthalpy) of vaporization; for a solid–gas transition, is the molar latent heat of sublimation. If the latent heat is known, then knowledge of one point on the coexistence curve , for instance (1 bar, 373 K) for water, determines the rest of the curve.