ideal gas


Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to ideal gas: Real gas

ideal gas

n.
A gas having particles that have perfectly elastic collisions and negligible volume and intermolecular forces, thus exactly obeying the ideal gas law. No known gas is an ideal gas, but actual gases approximate this behavior at relatively low pressure and high temperature.

ideal gas

n
(Chemistry) a hypothetical gas which obeys Boyle's law exactly at all temperatures and pressures, and which has internal energy that depends only upon the temperature. Measurements upon real gases are extrapolated to zero pressure to obtain results in agreement with theories relating to an ideal gas, esp in thermometry. Also called: perfect gas

i·de·al gas

(ī-dē′əl)
A gas in which there is no interaction between the individual molecules. Such a gas would obey the gas laws (such as Charles's law) exactly. No known gas qualifies as an ideal gas.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ideal gas - a hypothetical gas with molecules of negligible size that exert no intermolecular forces
gas - a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely
References in periodicals archive ?
Wandering through the rows of students seated on laboratory stools, I expounded the virtues of the Ideal Gas Law and how it expressed the relationship between pressure, volume and temperature in the reality of our everyday atmospheric conditions.
00(g/mol) Elemental oxygen P (nRT)/V Pressure [n=amount; R=ideal gas constant; T=temperature in Kelvins; V=volume] (H-E)/V Pressure [H=enthalpy; E=energy; V=volume] mv Momentum [m=mass; v=velocity] Q E-w Heat [E=energy; w=work] [mu]/d Charge of a polar molecule [j=dipole moment; d=distance] R (PV)/(nT) Ideal gas constant [P=pressure; V=volume; n=amount; T=temperature in Kelvins] k[N.
The international temperature scales reflect absolute zero as a "point" rather than as a singularity because they are based at low temperatures on the ideal gas law, which is indifferent to the meaning of temperature (20).
The ideal gas law to convert the mass of oxygen and carbon dioxide to volume has been taken.
2000 atmospheres), non-ideal effects on Dufour conduction yield indistinguishably higher/lower maximum intrapellet temperatures relative to ideal gas simulations when CO is the smaller/larger component in these pseudobinary mixtures.
We therefore obtain by the equation for an ideal gas p = RT[rho]/[mu] (where R is Clapeyron's constant, [mu] is the molecular weight), [bar.
Proper and regular maintenance, where, when and how a vehicle is driven are the key factors in attaining ideal gas mileage.
These 11 variables are related by means of the following seven constraints (density, internal energy, and the ideal gas law twice, once for each layer) (Fu et al.
He cites the air molecules moving about his office: "All of the crazy interactions of these molecules hitting each other can be boiled down to a simple behavior: the ideal gas law.
Here for simplicity of analysis a single gas (carburetor gas) entity is considered having air ideal gas and producer gas.