Results 251 to 260 of about 147,634 (282)

Acoustic Relaxation in a van der Waals Gas

The Journal of the Acoustical Society of America, 1952
Expressions are given for the sound velocity and the absorption coefficient per unit wavelength for a van der Waals gas. Numerical calculations have been carried out for several triatomic gases. In general, the velocity corrections, under standard conditions, average about 0.5 percent, while the absorption corrections are two or three times larger.
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New combining rules for rare gas van der waals parameters

Journal of Computational Chemistry, 1993
AbstractNew combining rules are proposed for the well depth, ϵ, and interaction distance, σ, describing nonbonded interatomic forces for rare gas pair interactions. Concepts underlying current combining rules applied in simulations of macromolecular and polymer systems are shown to be incompatible with experimental data on the rare gases.
Marvin Waldman, A.T. Hagler
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Van der Waals gas model for potassium in tungsten

International Journal of Refractory Metals and Hard Materials, 1998
Abstract Current theories involve the assumption of homogeneous bubble phase when describing the development of potassium bubble structure in K Al Si doped tungsten during thermomechanical processing. However, it follows from first principles that at process temperatures bubbles can exist in a two-phase state.
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Photofragmentation dynamics of ICl-rare gas van der Waals complexes

AIP Conference Proceedings, 1988
The vibrational predissociation dynamics of ICl‐rare gas van der Waals (vdW) complexes in the A 3Π1 and B 3Π0+ states have been examined at the state‐to‐state level of detail through optical‐optical double resonance methods. After state selective preparation of the vdW complex, the nascent ICl product distribution is probed via excitation of the ICl ...
Janet C. Drobits, John M. Skene, Marsha I. Lester   +2 more
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On the condensation of a Van der Waals gas

2011
A classical gas whose particles interact through a weak long range attraction and short range repulsion is studied. We study the properties of a non-linear integral equation, previously derived by N.G. Van Kampen, whose solutions give the possible equilibrium density distributions.
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Gas-liquid phase transition II: The van der Waals’ models

Pramana, 1977
On the basis of a recently proposed theory of first order phase transition we discuss (i) the exact equation of state in the critical region and (ii) examine the van der Waals’ gas model.
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van der Waals constants for alkaline earth-noble gas pairs

The Journal of Chemical Physics, 1974
The long-range R−6 interaction between alkaline earth and noble gas atoms is considered from both classical and quantum-mechanical viewpoints. Intra-atomic electron correlation effects are shown to be important for these systems. The relevant van der Waals coefficients are calculated with the use of an accurate, correlated wavefunction in the case of ...
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ON THE KINETIC THEORY OF A VAN DER WAALS GAS

Canadian Journal of Physics, 1967
A kinetic equation is proposed that leads, in equilibrium, to the Van der Waals equation of state. It is shown that this kinetic equation obeys an H theorem, and that its equilibrium solutions are, in the condensation region, of two types, (i) inhomogeneous equilibrium solutions which are absolutely stable and correspond to the two phases in ...
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Note on a van der Waals gas

The Physics Teacher, 1996
Robert P. Bauman, Joseph G. Harrison
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The van der Waals gas

2022
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