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What is the process called when a solid changes directly into a gas?

What is the process called when a solid changes directly into a gas?

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Asked by G. Horace, Last updated: Sep 19, 2020

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C. Marcus

C. Marcus

C. Marcus
C. Marcus, Content Developer, Washington

Answered Aug 08, 2018

Sublimation is the process of a solid going straight to a gas. As another answer stated, this can be seen with dry ice. When dry ice 'melts' it just creates a fog and turns back into the gaseous state of carbon dioxide. Sublimation is a change in the state of matter, just like melting, freezing, and evaporation.

Sublimation is the process of a solid going straight to a gas. As another answer stated, this can
It can be looked at as such: a solid that has a very low melting point, it won't melt, but it will immediately 'boil' and evaporate. The process would be similar if you had a super stove that could boil and evaporate water at a moment's notice.

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Chris Kenway

Chris Kenway

Chris Kenway
Chris Kenway, Content Writer, Jacksonville

Answered Aug 01, 2018

The change in state from a solid directly to a gas is called sublimation. An example is called frozen carbon dioxide which changes instantly into gaseous carbon dioxide without going through a liquid phase. For example, "dry ice" is frozen carbon dioxide.

The change in state from a solid directly to a gas is called sublimation. An example is called
Whether a solid changes directly to gas or first to a liquid, then to a gas depends upon the pressure. Sublime substances are not common. Examples are iodine, which does not go through a liquid when changing phases. Carbon dioxide is another example. It does not go through liquid during this process either.

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