21. Hypothetical phantom energy would have an equation of state w, and would cause a Big Rip. 22. The relationship between certain physical and thermodynamic properties may be described by an equation of state . 23. In addition to the mass, momentum, and energy conservation equations, a perfect gas equation of state : 24. Velocity u, is calculated from momentum, and pressure p, is calculated from the equation of state . 25. Other possible explanations for dark energy include equation of state , which varies depending upon the theory. 26. In practice, the analysis of compression data is done by using more sophisticated equations of state . 27. The equation of state is also given under the condition of a single component and multiphase. 28. And then we need the equation of state . 29. Schmidt and Wenzel proposed an equation of state with an attractive term that incorporates the acentric factor: 30. For example, an equation of state for a fluid relates temperature, pressure, and volume in this manner.
