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Sublimation

Astronomy Subduction zoneSubmillimetre astronomy

Sublimation
Sublimation is the process in which a material changes from a frozen solid to a gas without passing through the intermediate liquid state.

 


sublimation
the process by which a solid substance evaporates into a gas without passing through a liquid phase
summer ...

Sublimation. The change of a solid (such as ice) directly into a gaseous state (bypassing the liquid state).

Sublimation: Phase transformation from solid to gas.
Sulfur: An element with atomic number 16; symbol: S. Sulfur is common on the surface of Jupiter's moon Io.
Taurus-Littrow: Landing site of Apollo 17 on the Moon on Dec. 11, 1972.

SUBLIMATION - Process in which a material changes from a frozen solid to a gas without passing through the liquid state. Whether a material will sublimate, melt, or vaporize depends on the temperature and pressure of its environment.

Sublimation
A direct change of state from solid to vapor without melting.
Sub-Luminous Stars ...

sublimation - (n.)
The process of passing from gas to solid state (or vice versa) without becoming a liquid.
subtend - (n.) ...

*(Sublimation is the process by which a solid changes directly into a gas without passing through the liquid phase. Frozen carbon dioxide"dry ice"is an example of a solid that undergoes sublimation rather than melting and subsequent evaporation.

Dye sublimationDyea, AlaskaDyed Fabrics
DyeingDyeing Is Easy, Comedy Is HardDyer, Arkansas
Dyer, IndianaDyer, NevadaDyer, Tennessee ...

A: It's called sublimation.
A: One, the Sun.
Q: How would our seasons be different if the Earth's axis was not tilted (perpendicular to the Earth's orbital plane) AND if the axis was tilted 90 degrees instead of the 23.5 degrees?
from Sylvia S.

heat of sublimation See latent heat. heat of vaporization See latent heat. heat pulse Specifically, the sudden rise and subsequent fall in the temperature of a vehicle on reentry. heat shield 1.

Latent heat is termed heat of fusion, heat of sublimation, heat of vaporization, depending on the change of state involved. lateral (NASA SP-7, 1965) 1. Of or pertaining to the side; directed or moving toward the side.
2.

When low-temperature ice covers the Arctic Ocean there is little evaporation or sublimation and the polar regions are quite dry in terms of precipitation, comparable to the amount found in mid-latitude deserts.

The wind- and sublimation-eroded south polar cap of Triton is shown at the bottom of the Triton image, a cryovolcanic terrain at the upper right, and the enigmatic cantaloupe terrain at the upper left.

Sublimation starts when the comets are closer than about three astronomical units from the Sun (one astronomical unit [AU] equals about 150,000,000 km, or 93,000,000 miles).

Clouds seem to be related to the seasonal sublimation and condensation of polar-cap material. The A.L.P.O.

Features such as collapse pits, which are known to be caused by dry ice sublimation, suggest that the ice cap is dissipating, adding gas to the martian atmosphere.

Water molecules may become gaseous also by sublimation from ice or snow. It is sublimation that often accounts for the slow, mid-winter disappearance of ice and snow from fields and cities at temperatures too low to cause melting.

Is ice exhausted or is sublimation inhibited when comets become dormant?
Which dormant comets are masquerading as asteroids?
Why are the chemical and physical properties of small bodies like comets and asteroids so diverse?

The dark spots on these north polar dunes were areas where the seasonal frost coating had been removed--either by sublimation or by wind erosion. The dark material was presumed to be the sediment that composes the dunes.

Real comets are also depleted by sublimation each time they come near the Sun. Ultimately, old comets may break into several pieces or even completely disintegrate.

The Stardust team theorizes sublimation and object hits may have created the comet's distinct features. Some features may have formed billions of years ago, when life began on Earth, Brownlee suggested.

Both polar caps show spiral troughs, which are believed to form as a result of differential solar heating, coupled with the sublimation of ice and condensation of water vapor.

© NASA/JPL/Malin Space Science Systems When spring begins and the sunlight falls on the pole again, the carbon dioxide begins to turn to gas (a process called sublimation).

In astronomy, a coma is the nebulous envelope around the Comet nucleus of a comet. It is formed when the comet passes close to the Sun on its highly ellipse orbit; as the comet warms, parts of it Sublimation_%28chemistry%29....

The model can then be used to demonstrate why comets have tails and why the tail always points away from the sun, sublimation, orbits of comets, and concepts of radiation, pressure, and solar wind.
Grade Level: 5-8 ...

This creates an anti-greenhouse effect; much like sweat cools the body as it evaporates from the surface of the skin, this sublimation has a cooling effect on the surface of Pluto.

approaches the Sun, its dust surface becomes hotter, more heat is transferred through the crust, and the subsurface ice begins to sublimate. The resultant gas leaves the comet and carries with it some of the loosely bound dust particles. Sublimation ...

in an antiferromagnet the magnetic atoms can be divided into two equivalent classes, each magnetized in opposite directions. The total magnetization of one of these classes is the sublattice magnetization. [D89]
Sublimation ...

Subsequently, large amounts of dust (possibly volcanic ash) fell over that area, through the water and on top of the pack ice -- protecting it from sublimation and giving it a different hue, while the water evaporated.

Suppose the preceding runaway raised the temperature so high that chemical reactions begin to occur that drive the carbon dioxide from the rocks into the atmosphere (the process is called sublimation; ...

the vapor of ``dry ice'' (the sublimation of frozen carbon dioxide). sunspot cooler region on the Sun's surface that is a region of intense magnetic fields and is associated with solar activity.

See also: Earth, Sun, Atmosphere, Planet, Solar

Astronomy Subduction zoneSubmillimetre astronomy

 
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