Definition: An equation of state is a relation between state variables. It is a thermodynamic equation which describes the state of matter under a given set of physical conditions, typically relating energy, temperature, volume, and pressure. Equations of state most commonly are used to describe the properties of fluids, such as liquids, gases, and plasma, though equations of state may also be applied to solids.
Also Known As: Equations of State, thermodynamic equations
Examples:
Examples of equations of state include the Ideal Gas Law, Charles's Law, Dalton's Law of Partial Pressure

