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Sublimation is the transition of a substance directly from the solid to the gas state, without passing through the liquid state. Sublimation is an endothermic process that occurs at temperatures and pressures below a substance's triple point in its phase diagram, which corresponds to the lowest pressure at which the substance can exist as a liquid. The reverse process of sublimation is deposition or desublimation, in which a substance passes directly from a gas to a solid phase. Sublimation has also been used as a generic term to describe a solid-to-gas transition (sublimation) followed by a gas-to-solid transition (deposition). While vaporization from liquid to gas occurs as evaporation from the surface if it occurs below the boiling point of the liquid, and as boiling with formation of bubbles in the interior of the liquid if it occurs at the boiling point, there is no such distinction for the solid-to-gas transition which always occurs as sublimation from the surface. At normal pressures, most chemical compounds and elements possess three different states at different temperatures. In these cases, the transition from the solid to the gaseous state requires an intermediate liquid state.
jonathan haynes
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In a substance that sublimes the intermolecular forces of attraction are?
very weak.
What happens when a solid sublimes?
When ice sublimes, the molecules at the edge of the ice escape into the gas phase as water vapor. The solid phase thus turns directly into the gas phase without an intermediary liquid phase. Ice sublimes quite slowly under normal conditions, but dry ice (solid carbon dioxide) sublimes readily at everyday temperatures and pressures.
What is a nonmetal element that sublimes?
iodine?
What do the lines on a phase diagram represent?
The lines show where a phase changes happens to a substance -
What happens to naphthalene when it sublimes?
It is a simple consequence of the intermolecular forces of naphthalene. There is no simple, straight-forward explanation beyond that.
What happens when a substance changes from a solid to a gas without becoming a liquid?
It sublimes
What occurs when substance sublimes?
Evaporates (;
In a substance that sublimes the intermolecular forces of attraction are?
very weak.
What happens when a solid sublimes?
When ice sublimes, the molecules at the edge of the ice escape into the gas phase as water vapor. The solid phase thus turns directly into the gas phase without an intermediary liquid phase. Ice sublimes quite slowly under normal conditions, but dry ice (solid carbon dioxide) sublimes readily at everyday temperatures and pressures.
What is sublimation and give an example of a substance that sublimes?
If zinc chloride is heated strongly the solid will sublime.
What happens when you add dry ice to warm water?
There will be fake fog as it sublimes
If ammonium chloride and sand under goes sublimationwhich solid sublimes?
If ammonium chloride and sand are heated or undergo sublimation, ammonium chloride being a sublimable substance sublimes and sand is left behind as the residue.
What happened to camphor when exposed to air?
Camphor is a sublimable substance, so it sublimes after some time when exposed to air...
What is the explanation for the chemical meaning of sublimation?
Sublimation is the process in which a substance passes from the solid phase directly to the gas phase without passing through a liquid phase. Iodine is an example of a substance that sublimes.
What are examples of substances that changes to solid from gas?
That is a substance that sublimes. It is not common. Naphthalene (old-fashioned moth balls), also carbon dioxide (dry ice)
Naphthalene sublimes easily but potassium bromide does not How could you separate these two substances?
Dry ice sublimes
What happens to a substance when it is distilled?
The substance is purified/cleansed or refined.
