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Gas - Wikipedia
Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma).A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide).A gas mixture, such as air, contains a variety of pure gases.
Chem4Kids.com: Matter: Gases
Looking for a Gas Gases are everywhere. You may have heard about the atmosphere. The atmosphere is an envelope of gases that surrounds the Earth.
Gases - definition of gases by The Free Dictionary
gas (găs) n. pl. gas·es or gas·ses 1. a. The state of matter distinguished from the solid and liquid states by relatively low density and viscosity, relatively great expansion and contraction with changes in pressure and temperature, the ability to diffuse readily, and the spontaneous tendency to become distributed uniformly throughout any container ...
Properties of Matter: Gases - Live Science
Gas is a state of matter that has no fixed shape and no fixed volume. Gases have lower density than other states of matter, such as solids and liquids. There is a great deal of empty space between ...
Gasses | Definition of Gasses at Dictionary.com
Gasses definition, a substance possessing perfect molecular mobility and the property of indefinite expansion, as opposed to a solid or liquid. See more.
Most Common Gases - praxair.com
Explore the pure gases, mixtures and handling equipment we offer and start getting more done today.
Gases - Purdue University
There are two reasons for studying gases before liquids or solids. First, the behavior of gases is easier to describe because most of the properties of gases do not depend on the identity of the gas.
Industrial Gases, Gas Mixtures & Specialty Gases | Air ...
From oxygen, nitrogen, argon, helium, and hydrogen to medical and specialty gases to welding and cutting gases, Air Products enables customers in a myriad of industries to improve their environmental performance, product quality, and productivity. Click on the gas products on the left to find what you need to improve your operation.
Gas | Definition of Gas by Merriam-Webster
Gas definition is - a fluid (such as air) that has neither independent shape nor volume but tends to expand indefinitely. How to use gas in a sentence.
Gases, Liquids, and Solids - Purdue University
Gases, Liquids, and Solids. Gases, liquids and solids are all made up of atoms, molecules, and/or ions, but the behaviors of these particles differ in the three phases.