This page is about the physical properties of gas as a state of matter. For the uses of gases, and other meanings, see Gas (disambiguation).
Gas phase particles (atoms, molecules, or ions) move around freely- A gas is one of four states of matter[1][2]. Near absolute zero, a substance exists as a solid. As heat is added to this substance it melts into a liquid at its melting point, boils into a gas at its boiling point, and if heated high enough would enter a plasma state in which the electrons are so energized that they leave their parent atoms from within the gas. A pure gas may be comprised of individual atoms (ie a noble gas or atomic gas like neon), elemental molecules made from one type of atom (ie oxygen), or compound molecules made from a variety of atoms (ie carbon dioxide). An atomic gas which is cooled to an extremely low temperature is said to be a highly degenerate atomic gas, and can be classified as either a bose gas or a fermi gas. A gas mixture would contain a variety of pure gases much like the air that we breathe. What distinguishes a gas from liquids and solids is the vast separation of the individual gas particles as seen in the model to the right. This separation usually makes a colourless gas invisible to the human observer.
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GuruFocus.com, TX
Pall Corporation is a leading supplier of fine filters principally made by the Company using its proprietary filter media and other fluid clarification and separations equipment for the removal of solid liquid and gaseous contaminants from a wide ...
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Lawyer Sanders
2009-04-23 15:32:11
On April 22, Perma-Fix received 940 gallons of radioactive PCB liquids from the U.S. Department of Energy's (DOE) Paducah . Gaseous. Diffusion Plant which is located in Kevil, KY. This mixed hazardous waste from Kentucky's Paducah . Gaseous. ...
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