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2 days ago · In this paper, a kinetic Boltzmann model equation with internal degrees of freedom is established for thermodynamic non-equilibrium multi-component polyatomic gas mixture by using continuous energy levels to deal with rotational energy and vibrational energy. The normalization and conservativeness of the kinetic model are analyzed and proved.
2 days ago · The van der Waals equation, named for its originator, the Dutch physicist Johannes Diderik van der Waals, is an equation of state that extends the ideal gas law to include the non-zero size of gas molecules and the interactions between them (both of which depend on the specific substance).
1 day ago · The Boltzmann equation for the distribution function of a gas in non-equilibrium states is still the most effective equation for studying transport phenomena in gases and metals. By introducing the concept of thermodynamic probability as the number of microstates corresponding to the current macrostate, he showed that its logarithm is proportional to entropy.
2 days ago · Defect energetics from standard density functional theory (DFT) calculations are used to determine the charge concentration as a function of the Fermi level \(E_{{\text{F}}}\) and Li chemical potential \(\mu_{{{\text{Li}}}}\). This is subsequently coupled with Poisson’s equation to calculate the ionic space charge profile.
5 days ago · The equation of radiative transfer describes the way in which radiation is affected as it travels through a material medium. For the special case in which the material medium is in thermodynamic equilibrium in the neighborhood of a point in the medium, Planck's law is of special importance.
3 days ago · For the equation a b c d A + B C + D, 𝐾 is calculated as the product of the partial pressures C and D divided by the product of the partial pressures of A and B, where each individual partial pressure is raised to the power of their respective stoichiometric coefficients c, d, a, and b.
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How did Boltzmann describe the van der Waals equation?
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What is Langmuir equation?
Is Boltzmann's second law valid?
2 days ago · Based on his theory, Langmuir derived an equation which explained the relationship between the number of active sites of the surface undergoing adsorption and pressure. This equation is called Langmuir Equation.
