chemistry, an equation of state is a thermodynamic equation relating state variables, which describe the state of matter under a given set of physical conditions...

Cubic equations of state are a specific class of thermodynamic models for modeling the pressure of a gas as a function of temperature and density and...

cosmology, the equation of state of a perfect fluid is characterized by a dimensionless number w {\displaystyle w} , equal to the ratio of its pressure...

equation is a mathematical formula that describes the behavior of real gases. It is an equation of state that relates the pressure, volume, number of...

c}}} , T r = T / T c {\displaystyle T_{r}=T/T_{\text{c}}} the equation of state can be written in the reduced form: p r = 3 T r V r − b ′ − 1 b ′...

thermodynamics, the Redlich–Kwong equation of state is an empirical, algebraic equation that relates temperature, pressure, and volume of gases. It is generally...

(found from the equation of state), and c {\displaystyle c}  is the speed of light. Using the TOV equations and an equation of state, a mass-radius curve...

The Mie–Grüneisen equation of state is an equation of state that relates the pressure and volume of a solid at a given temperature. It is used to determine...

The Navier–Stokes equations (/nævˈjeɪ stoʊks/ nav-YAY STOHKS) are partial differential equations which describe the motion of viscous fluid substances...

Birch–Murnaghan isothermal equation of state, published in 1947 by Albert Francis Birch of Harvard, is a relationship between the volume of a body and the pressure...

determination of molecular fields. —II. From the equation of state of a gas". Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical...

In fluid dynamics, the Euler equations are a set of partial differential equations governing adiabatic and inviscid flow. They are named after Leonhard...

called the general gas equation, is the equation of state of a hypothetical ideal gas. It is a good approximation of the behavior of many gases under many...

with an equation of state for the considered material. For an ideal gas, evaluating the partial derivatives above according to the equation of state, where...

model of thermodynamic equations of state. It expresses the pressure P of a gas in local equilibrium as a power series of the density. This equation may...

per particle is:: Section 2.5  Developing the virial equation yields the pressure equation of state: The radial distribution function is an important measure...

to his field equations of general relativity. He later removed it; however, much later it was revived to express the energy density of space, or vacuum...

A Bellman equation, named after Richard E. Bellman, is a necessary condition for optimality associated with the mathematical optimization method known...

Functional equation Functional equation (L-function) Constitutive equation Laws of science Defining equation (physical chemistry) List of equations in classical...

The Schrödinger equation is a partial differential equation that governs the wave function of a non-relativistic quantum-mechanical system.: 1–2  Its...

cycle of a Big Bang, followed by a Big Crunch. Each possibility described so far is based on a simple form for the dark energy equation of state. However...

Murnaghan equation of state is a relationship between the volume of a body and the pressure to which it is subjected. This is one of many state equations that...

connects the equation of state to one or more thermodynamic energy properties. Here we refer to it as a "thermodynamic equation of state." The fundamental...

equation of state that accurately predicts the properties of all gases under all conditions. Therefore, a number of much more accurate equations of state...

states of matter. Superfluids (like Fermionic condensate) and the quark–gluon plasma are examples. In a chemical equation, the state of matter of the chemicals...

The Friedmann equations, also known as the Friedmann–Lemaître (FL) equations, are a set of equations in physical cosmology that govern cosmic expansion...

The Antoine equation is a class of semi-empirical correlations describing the relation between vapor pressure and temperature for pure substances. The...

ideal gas law, a simplified equation of state, and is amenable to analysis under statistical mechanics. The requirement of zero interaction can often be...

stress measure, p ( ϵ k k ) {\displaystyle p(\epsilon _{kk})} is an equation of state for the pressure, δ i j {\displaystyle \delta _{ij}} is the Kronecker...

SAFT) is an equation of state that is based on statistical associating fluid theory (SAFT). Like other SAFT equations of state, it makes use of chain and...