An ideal gas is a theoretical gas composed of many randomly moving point particles that are not subject to interparticle interactions. The ideal gas concept...

The ideal gas law, also called the general gas equation, is the equation of state of a hypothetical ideal gas. It is a good approximation of the behavior...

The molar gas constant (also known as the gas constant, universal gas constant, or ideal gas constant) is denoted by the symbol R or R. It is the molar...

Gas is one of the four fundamental states of matter. The others are solid, liquid, and plasma. A pure gas may be made up of individual atoms (e.g. a noble...

expansion factor and is denoted by γ (gamma) for an ideal gas or κ (kappa), the isentropic exponent for a real gas. The symbol γ is used by aerospace and chemical...

effect can be found.[citation needed] In this regime, the gas can be regarded as an ideal gas. Flow in this regime is still Mach number dependent. Simulations...

behaviour of gases under fixed pressure, volume, amount of gas, and absolute temperature conditions are called Gas Laws. The basic gas laws were discovered...

monatomic gas, 5 for a diatomic gas or a gas of linear molecules such as carbon dioxide). For a monatomic ideal gas, γ = ⁠5/3⁠, and for a diatomic gas (such...

For an ideal gas, evaluating the partial derivatives above according to the equation of state, where R is the gas constant, for an ideal gas P V = n...

Δ T = 0 {\displaystyle \Delta T=0} d T = 0 {\displaystyle dT=0} For ideal gases only, internal energy Δ U = 0 {\displaystyle \Delta U=0} while in adiabatic...

_{i}^{0}}=M_{i}v_{i}} For ideal gases, the molar volume is given by the ideal gas equation; this is a good approximation for many common gases at standard temperature...

temperature in gases. This theory also explains the ideal gas law and the observed heat capacity of monatomic (or 'noble') gases. The ideal gas law is based...

331 m/s (1,086 ft/s; 1,192 km/h; 740 mph; 643 kn). The speed of sound in an ideal gas depends only on its temperature and composition. The speed has a weak...

exerted by a given mass of an ideal gas is inversely proportional to the volume it occupies if the temperature and amount of gas remain unchanged within a...

appear as a straight horizontal line. If an ideal gas is used in an isochoric process, and the quantity of gas stays constant, then the increase in energy...

pressure of the gas, n is the amount of substance, T is the absolute temperature, V is the volume, R is the ideal gas constant. Real gases exhibit a more...

densities of gases and liquids to temperatures and pressures, known as the ideal gas law, which is roughly accurate for weakly polar gases at low pressures...

1085 °C). When pressure approaches zero, all real gas will behave like ideal gas, that is, pV of a mole of gas relying only on temperature. Therefore, we can...

pressure of an ideal gas mixture is the sum of the partial pressures of the gases in the mixture (Dalton's Law). The partial pressure of a gas is a measure...

also applies to metals in the Fermi gas approximation. Degenerate matter is usually modelled as an ideal Fermi gas, an ensemble of non-interacting fermions...

single spring. For example, it predicts that every atom in a monatomic ideal gas has an average kinetic energy of ⁠3/2⁠kBT in thermal equilibrium, where...

experimental gas law relating the volume of a gas to the amount of substance of gas present. The law is a specific case of the ideal gas law. A modern...

the set of distinct states of a system, besides the special case of an ideal gas. This topic was investigated to completion by Josiah Willard Gibbs who...

ensemble of ideal gas particles, in which he defined entropy as proportional to the natural logarithm of the number of microstates such a gas could occupy...

Non ideal compressible fluid dynamics (NICFD), or non ideal gas dynamics, is a branch of fluid mechanics studying the dynamic behavior of fluids not obeying...

perfect gas models are ideal gas models in the sense that they all follow the ideal gas equation of state. However, the idea of a perfect gas model is...

effect) describes the temperature change of a real gas or liquid (as differentiated from an ideal gas) when it is forced by a pressure difference through...

are pumps, gas compressors, turbines, nozzles, and diffusers. Most steady-flow devices operate under adiabatic conditions, and the ideal process for...

kelvin) and energy (with unit joule). Macroscopically, the ideal gas law states that, for an ideal gas, the product of pressure p and volume V is proportional...

temperature scale; a state at which the enthalpy and entropy of a cooled ideal gas reach their minimum value, taken as zero kelvin. The fundamental particles...