Concept information
Preferred term
gas
Definition
- [MESH] The vapor state of matter; nonelastic fluids in which the molecules are in free movement and their mean positions far apart. Gases tend to expand indefinitely, to diffuse and mix readily with other gases, to have definite relations of volume, temperature, and pressure, and to condense or liquefy at low temperatures or under sufficient pressure. (Grant & Hackh's Chemical Dictionary, 5th ed)
Broader concept
Scope note
- US LTER controlled vocabulary
Creator
- herbert.schentz@umweltbundesamt.at
URI
http://vocabs.lter-europe.net/EnvThes/20876
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