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1. Dictionary

   gas

   /ɡas/

   noun

   • 1. a substance or matter in a state in which it will expand freely to fill the whole of a container, having no fixed shape (unlike a solid) and no fixed volume (unlike a liquid): "hot balls of gas that become stars"
   • ▪ a gaseous substance that cannot be liquefied by the application of pressure alone.
   • ▪ a flammable gas used as a fuel: "cooking is done by bottled gas"
   • ▪ a gaseous anaesthetic such as nitrous oxide, used in dentistry.
   • ▪ gas or vapour used as a poisonous agent in warfare: "gas was one of the most dreaded weapons of the war"
   • ▪ gas generated in the alimentary canal; flatulence.
   • ▪ an explosive mixture of firedamp with air.
   • 2. short for gasoline North American
   • ▪ used in reference to power or the accelerator of a car: "I ordered my friend to step on the gas"
   • 3. an entertaining or amusing person or situation: informal "the party would be a gas"
   • ▪ enjoyment, amusement, or fun: Irish "it was great gas in the club last night"

   verb

   • 1. kill or harm by exposure to gas: "my son was gassed at Verdun"
   • ▪ (of a storage battery or dry cell) give off gas: "the maintenance-free charger controls the input without inducing gassing"
   • 2. talk excessively about trivial matters: informal "I thought you'd never stop gassing"
   • 3. fill the tank of (a motor vehicle) with petrol: informal North American "after gassing up the car, he went into the restaurant"

   adjective

   • 1. very amusing or entertaining: informal Irish "Ruthie, that's gas—you're a gem"

   Word Origin mid 17th century: invented by J. B. van Helmont (1577–1644), Belgian chemist, to denote an occult principle which he believed to exist in all matter; suggested by Greek khaos ‘chaos’, with Dutch g representing Greek kh.

   Scrabble Points: 4

   • G

     2

   • A

     1

   • S

     1

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   More definitions, origin and scrabble points

2. www.britannica.com › science › gas-state-of-matterGas | Definition, State of Matter, Properties, Structure, & Facts

   www.britannica.com › science › gas-state-of-matter

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   5 days ago · Gas, one of the three fundamental states of matter, with distinctly different properties from the liquid and solid states. The remarkable feature of gases is that they appear to have no structure at all. They have neither a definite size nor shape, whereas ordinary solids have both a definite size.

   • Effusion

     Gas - Effusion, Kinetic Theory, Particles: Consider the...

   • Diffusion

     The rate of flow of the diffusing substance is found to be...

   • Thermal Conductivity

     Adding heavy gas to light gas reduces the thermal...

   • Molecular Sizes

     Gas - Molecular, Sizes, Properties: Molecular sizes can be...

   • Behaviour and Properties

     Gas - Behaviour, Properties, Physics: The enormous number of...

   • Boltzmann Equation

     Gas - Boltzmann Equation, Kinetic Theory, Thermodynamics:...

   • Kinetic Theory of Gases

     Based on the kinetic theory, pressure on the container walls...

   • Transport Properties

     Gas - Transport, Properties, Flow: The following is a...

3. www.britannica.com › science › gas-state-of-matterGas - Behaviour, Properties, Physics | Britannica

   www.britannica.com › science › gas-state-of-matter

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   5 days ago · Gas - Behaviour, Properties, Physics: The enormous number of molecules in even a small volume of a dilute gas produces not complication, as might be expected, but rather simplification. The reason is that ordinarily only statistical averages are observed in the study of the behaviour and properties of gases, and statistical methods are quite ...

4. www.britannica.com › science › natural-gasNatural gas - Composition, Properties, Uses | Britannica

   www.britannica.com › science › natural-gas

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   2 days ago · Natural gas is a hydrocarbon mixture consisting primarily of saturated light paraffins such as methane and ethane, both of which are gaseous under atmospheric conditions. The mixture also may contain other hydrocarbons, such as propane, butane, pentane, and hexane.

5. www.carboncollective.co › sustainable-investing › fossil-fuelsWhat Are Fossil Fuels? | Definition, Importance, Types, & Impacts

   www.carboncollective.co › sustainable-investing › fossil-fuels

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   3 days ago · Fossil fuel is a hydrocarbon-containing decomposed material formed underground from the remains of dead plants and animals millions of years ago that is burned to release energy for use.

6. www1.grc.nasa.gov › beginners-guide-to-aeronautics › gasGas Properties Definitions | Glenn Research Center | NASA

   www1.grc.nasa.gov › beginners-guide-to-aeronautics › gas

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   4 days ago · Under normal conditions, matter exists as either a solid, a liquid, or a gas. Atmospheres are composed of gases. In any gas, we have a very large number of molecules that are only weakly attracted to each other and are free to move about in space.

7. en.wikipedia.org › wiki › Atmosphere_of_EarthAtmosphere of Earth - Wikipedia

   en.wikipedia.org › wiki › Atmosphere_of_Earth

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   1 day ago · The atmosphere of Earth is the planetary atmosphere of Earth, composed of a layer of gas mixture that surrounds the Earth's planetary surface (both lands and oceans ), known collectively as air, with variable quantities of suspended aerosols and particulates (which create weather features such as clouds and hazes ), all retained by Earth's gravity.

8. en.wikipedia.org › wiki › MethaneMethane - Wikipedia

   en.wikipedia.org › wiki › Methane

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   2 days ago · Methane ( US: / ˈmɛθeɪn / METH-ayn, UK: / ˈmiːθeɪn / MEE-thayn) is a chemical compound with the chemical formula CH4 (one carbon atom bonded to four hydrogen atoms). It is a group-14 hydride, the simplest alkane, and the main constituent of natural gas.