Real Gas

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real gas

[′rēl ′gas]
A gas, as considered from the viewpoint in which deviations from the ideal gas law, resulting from interactions of gas molecules, are taken into account. Also known as imperfect gas.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Real Gas


a gas having properties that are influenced significantly by molecular interaction. Under normal conditions, when the mean potential energy of molecular interactions is appreciably less than the mean kinetic energy, the properties of a real gas are not significantly different from those of an ideal gas—in such instances, ideal gas laws can be applied to real gases. The properties of real gases differ most noticeably from those of ideal gases at high pressures and low temperatures, when quantum effects start appearing.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
POD Results for Real Gas. For real gas, compressibility factor (Z) and compressibility ([c.sub.g]) should be computed by the equation of state (see (4)) and the equation of real gas compressibility (see (7)).
Fourteen runs were made, six of them using air in the driver section for perfect gas simulation and eight of them using helium in the driver section for real gas simulation.
Quantity (Z) is called the "compression factor", it is a useful measure of the deviation of a real gas (Eq.) from an ideal gas (Eq.) number of moles (mass), R = gas constant, T= absolute temperature, P = absolute pressure.
The author was faced in recent years with several cycle analysis problems with pronounced real gas behavior while the result should comply with the requirements of the classic definition of the polytropic efficiency was required.
A shop performance test is more useful if the real gas is used and the pressures, compressor speed, capacity and power match the site's operating conditions as close as possible.
The bad news is that jihadis may think it a real gas to take over Assad's toxic assets - his stash of chemical weapons.
From left to right (first to third row respectively in each column): second column represents real gas bearing and the substituted water and salt wells/zones into gas.
The kinetics data was derived using ideal gas law as well as the three real gas equations of state as detailed, above.
JUDGES of an environmental competition thought a Teesside school's garden project was a real gas.
However, genuine representatives from these organisations rarely make house calls without appointments and if there is a real gas or water emergency, police and firefighters are likely to be present * Always check ID - bogus callers use props like an identity card or wear clothing with a company logo.
Although real gas prices actually declined throughout much of the 1980s and 1990s (Figure 2), they have again risen sharply in recent years, from $1.60 per gallon at the start of 2004 to $3.22 in May of 2007 (Figure 3).