ideal gas


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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 ?
He presents essays on such aspects as the fundamental principle of dynamics (Newton's second law), the ideal gas law, the matter-energy equivalence, Einstein's equations: general relativity, the standard model, and the limits of the standard model and future physics.
When pressure and temperature on either side of the membrane are equal, and the ideal gas law holds, the trans-membrane flux is expressed in terms of a partial pressure driving force as follows [7]:
The manifold temperatures [T.sub.1] and [T.sub.2] are calculated from the ideal gas law, [T.sub.x] = [V.sub.x][P.sub.x]/([Rm.sub.x]).
"Software Development is an ideal gas: it occupies all the volume it can."
To investigate the effect of capacitor size on air delivered to the engine, we constructed a theoretical model for capacitor pressure drop with the following assumptions: (1) the expansion of air from the capacitor into the cylinder is adiabatic, (2) the pressure inside the capacitor starts at the turbocharger pressure, (3) during the intake stroke, the volume of the system increases to the sum of the volume of the capacitor and the engine, and (4) ideal gas behavior of air.
If you had a simple Ideal Gas Law PV=nRT compressor, the simple fact of compressing gas (in this case, ambient air) from, say, 10 PSIA and 23 F (at roughly 10,000 feet) back to sea level pressure of 14.7 PSIG would heat the gas.
The biasing of semiconductor diodes, transistors, operational amplifiers, the application of Kirchoff's Current and Voltage Laws to a circuit, Mesh and Nodal Analysis, programming, stresses and strains, Ideal Gas Law, etc.
In doing so, it appears that he was the first to combine gravitational potential energy with the kinetic energy for a gas, as derived from the ideal gas law, and thereby obtained an expression defining the mean temperature of a star.
develop and apply the Ideal Gas Law, and Dalton's law of partial pressure;
The refrigerant was assumed to be an ideal gas. Navier-Stokes and energy equations were solved and standard k-[epsilon] turbulence model was used to simulate the flow turbulence and gravity force was included in the momentum equation.
The concept of an ideal gas of TI-bipolarons is substantiated.
According to the theory of seepage mechanics, seepage Darcy law, Fick's law of diffusion and multicomponent gas adsorption equilibrium theory, the law of conservation of mass and the ideal gas equation, the paper constructs the continuity equations of gas injection and permeability enhancement model and establishes the model of gas injection and permeability enhancement in low-permeability coal seam.