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gas,

in physics, one of the three commonly recognized states of matter, the other two being solid and liquid. A substance in the gaseous state has neither definite shape nor definite volume. Like liquids, gases are fluids and assume the shape of their containers. Unlike liquids, they will expand to fill any container, regardless of its size. All gases condense into liquids or solids when sufficiently cooled or compressed (see compressioncompression,
external stress applied to an object or substance, tending to cause a decrease in volume (see pressure). Gases can be compressed easily, solids and liquids to a very small degree if at all.
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; condensationcondensation,
in physics, change of a substance from the gaseous (vapor) to the liquid state (see states of matter). Condensation is the reverse of vaporization, or change from liquid to gas.
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; liquefactionliquefaction,
change of a substance from the solid or the gaseous state to the liquid state. Since the different states of matter correspond to different amounts of energy of the molecules making up the substance, energy in the form of heat must either be supplied to a substance
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). Most gases first liquefy, but some pass directly into the solid state (see sublimationsublimation
, change of a solid substance directly to a vapor without first passing through the liquid state. The term is also used to describe the reverse process of the gas changing directly to the solid again upon cooling.
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); carbon dioxide, for example, can condense into dry ice. Some gases are extremely soluble in certain liquids, the liquid absorbing many times its own volume of gas. Some solids, by a process called adsorption, can take up many times their own volume of certain gases. The behavior of gases under various conditions of pressure, temperature, and volume is described by the various gas lawsgas laws,
physical laws describing the behavior of a gas under various conditions of pressure, volume, and temperature. Experimental results indicate that all real gases behave in approximately the same manner, having their volume reduced by about the same proportion of the
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. Many of the properties of gases can be understood by considering the fact that only a small part of the volume of a gas is occupied by its atoms or molecules, which are in rapid, random motion. See kinetic-molecular theory of gaseskinetic-molecular theory of gases,
physical theory that explains the behavior of gases on the basis of the following assumptions: (1) Any gas is composed of a very large number of very tiny particles called molecules; (2) The molecules are very far apart compared to their sizes,
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.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/

Gas

A state of matter, including natural gas and propane, used as a fuel to produce energy, generally for lighting and heating.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

gas

[gas]
(materials)
(ordnance)
To expose to a war gas.
(physics)
A phase of matter in which the substance expands readily to fill any containing vessel; characterized by relatively low density.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

gas

1. a substance in a physical state in which it does not resist change of shape and will expand indefinitely to fill any container. If very high pressure is applied a gas may become liquid or solid, otherwise its density tends towards that of the condensed phase
2. any substance that is gaseous at room temperature and atmospheric pressure
3. any gaseous substance that is above its critical temperature and therefore not liquefiable by pressure alone
4. 
a. a fossil fuel in the form of a gas, used as a source of domestic and industrial heat
b. (as modifier): a gas cooker
5. a gaseous anaesthetic, such as nitrous oxide
6. the usual US, Canadian, and New Zealand word for petrol, a shortened form of gasoline
7. US an informal name for flatus
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

gas

This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

Ethereum

A smart contracts and electronic payment system introduced in 2015. Like Bitcoin, Ethereum is a blockchain-based distributed ledger; however, Ethereum's purpose is to provide a platform for third parties to develop decentralized applications (dApps) that are secure and verifiable. People use the Ethereum code to create their own assets in the form of digital tokens, which can be fixed or fluctuate, and payments are made in Ether (ETH) digital currency. Bitcoin confirmations take minutes but Ethereum takes only seconds, and fees are based on "Gas," which is the amount of time spent validating the transactions.

2018 - A Roller Coaster Ride
Like Bitcoin, 2018 was the year cryptocurrency values dropped precipitously. Ethereum's price started the year at USD $1,400 and ended at $117.

Ethereum Classic (ETC)
Due to a hacking event that stole USD $50M in Ether from an Ethereum-based venture capital project known as "The DAO," Ethereum was split into Ethereum Hard Fork and Ethereum Classic in 2016. Ethereum Hard Fork (ETH) started with a revised blockchain and returned the stolen funds to the DAO token holders. Ethereum Classic (ETC) continued to use the old blockchain, and the two are not compatible. As of 2020, one ETH is considerably more valuable than one ETC. See Wei, proof of work algorithm, blockchain, GUSD and Bitcoin.
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References in periodicals archive ?
However, previous studies have shown that preoperative ABG can reliably predict OC defects in CSOM independent of its nature, discontinuity, or fixation.
ABG's impaired loans ratio (6.0% at end-1H18) is higher than peers due to higher exposure to riskier segments, such as retail and business banking and Rest of Africa.
However, there was no significant difference in mean pre-op ABG and post-op ABG between Group A and Group B.
The endorsement of the "Responsible Marketing to Children" Pledge by the ABG is the first step towards making this the standard across the advertising and marketing industry via self-regulation, and thus driving greater consumer confidence, it said.
The senior author (J.L.) used his stapes surgery database to identify those patients with a preoperative ABG of <21.25 dB (as defined by American Academy of Otolaryngology-Head and Neck Surgery [AAO-HNS] guidelines).
That advertisers and brand owners led the way in setting up the grouping is what sets ABG apart.
On the occasion, Sheikh Saleh Abdullah Kamel, Chairman of Al Baraka Banking Group (ABG) said that "The merger between ABPL and BBL is part of the group's strategy to expand its reach in Pakistan and strengthen the global footprint of Islamic Finance.
He thanked Al-Baraka Banking Group (ABG) for its initiative to sponsor the Ramadan Iftar for RCO affiliate families.
ABG is a brand development company which owns a leading global portfolio of iconic fashion, sports and entertainment brands.
ABG's strategic focus for Frederick's of Hollywood will be to launch a new brand vision, expand product categories and drive distribution across department stores and specialty retailers in key markets including North America, Europe, Asia, South America and Latin America.
Volvo Construction Equipment has confirmed its intention to introduce the P6820C ABG paver to the Middle East.
In five simple steps, ABG results can be analyzed for acidosis vs.