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The virial expansion is a 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 be represented in terms of the compressibility factor, Z, as = + + + This equation was first proposed by Kamerlingh Onnes. [1]
In physics and chemistry, an equation of state is a thermodynamic equation relating state variables, ... This equation is also called the Kamerlingh Onnes equation.
Heike Kamerlingh Onnes (Dutch: [ˈɦɛikə ˈkaːmərlɪŋ ˈɔnəs]; 21 September 1853 – 21 February 1926) was a Dutch physicist. After studying in Groningen and Heidelberg, he became professor of experimental physics at the University of Leiden where he taught from 1882 to 1923.
Heike Kamerlingh Onnes was influenced by the work of Van der Waals. [1] [2] [3] In 1908, Heike Kamerlingh Onnes became the first to make liquid helium and this led directly to his 1911 discovery of superconductivity. Heike Kamerlingh Onnes (right), the discoverer of superconductivity. Paul Ehrenfest, Hendrik Lorentz, Niels Bohr stand to his left.
In the thermodynamics of equilibrium, a state function, function of state, or point function for a thermodynamic system is a mathematical function relating several state variables or state quantities (that describe equilibrium states of a system) that depend only on the current equilibrium thermodynamic state of the system [1] (e.g. gas, liquid, solid, crystal, or emulsion), not the path which ...
Liquid helium is a physical state of helium at very low temperatures at standard atmospheric pressures.Liquid helium may show superfluidity.. At standard pressure, the chemical element helium exists in a liquid form only at the extremely low temperature of −269 °C (−452.20 °F; 4.15 K).
The Trump administration abruptly sent water flowing from two California dams. The action could leave less water in dams for the summer, when farmers typically use it.
1911 – Heike Kamerlingh Onnes and Gilles Holst discover superconductivity in mercury. 1912 – Max von Laue discovers diffraction of X-rays by crystals. 1912 – Peter Debye develops a model for the specific heat of solids in terms of phonons, known as Debye model. 1913 – William Henry Bragg and Lawrence Bragg use X-rays to analyze crystals.