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...

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...

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...

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...

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 ′...

(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...

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

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...

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

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

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...

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

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...

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...

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

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

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...

term was coined by Robert R. Caldwell in 1999. In cosmology, the equation of state of a perfect fluid is given by p = w ρ , {\displaystyle p=w\rho ,} where...

higher-dimensional spaces, as described by the state postulate. Generally, a state space is defined by an equation of the form F ( P , V , T , … ) = 0 {\displaystyle...

fluid mechanics, the Tait equation is an equation of state, used to relate liquid density to hydrostatic pressure. The equation was originally published...

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

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...

astrophysics, the Tolman–Oppenheimer–Volkoff (TOV) equation constrains the structure of a spherically symmetric body of isotropic material which is in static gravitational...

evolution of dark energy with the cosmological data. In this scenario, the equation of state (EoS) ω = p / ρ {\displaystyle \omega =p/\rho } of the dark...

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...

Solutions of the Einstein field equations are metrics of spacetimes that result from solving the Einstein field equations (EFE) of general relativity....

and to demonstrate the physical consequences of their size through the van der Waals equation of state. The van der Waals volume, Vw, also called the...