Results 191 to 200 of about 2,837,565 (258)

On the Quantum Theory of the Third Virial Coefficient

Physical Review, 1959
The quantum theory of the third virial coefficient $C$ is discussed. Three types of intermolecular pair forces must be distinguished. (1) No bound or low-lying two- and/or three-body states exist. The first four terms of the low-temperature expansion of ${C}_{\mathrm{BE}}$ are obtained.
Pais, A., Uhlenbeck, G. E.
openaire   +2 more sources

Interrelation of the Virial Coefficients

The Journal of Chemical Physics, 1968
An equation of the form F(T, B, C, D, ···) = 0, in which the temperature T is the only independent variable, is presented to interrelate the virial coefficients, B, C, D, ···, which are functions of temperature only. The equation is derived from the experimental observation that temperature and density are linearly related at unit compressibility ...
openaire   +1 more source

Second Virial Coefficient of Polar Gases

The Physics of Fluids, 1962
The theoretical expressions for the second virial coefficient, B(T), are derived for the (18–6-3) Stockmayer potential Φ(r)=4ε[(σr)18−(σr)6]−μ2r3g(θ1,θ2,φ),where g(θ1, θ2, φ) = 2 cos θ1 cos θ2 − sin θ1 sin θ2 cos φ, and also according to the (28–7-3) potential.
Saxena, S. C., Joshi, K. M.
openaire   +1 more source

Second virial coefficient of vapors

Journal of Engineering Physics, 1985
An expression is offered for calculation of the second virial coefficient of vapors of nonassociative materials and their mixtures.
L. P. Filippov, N. L. Veretel'nikova, A. D. Okhotsimskii   +2 more
openaire   +1 more source

On the computation of third virial coefficients

Computer Physics Communications, 1972
Abstract This note presents an efficient and fast method for evaluating the third virial coefficient for radially symmetric two-body potential functions. The computational method uses a list processing scheme based on a proper multidimensional integration formula and is considerably superior to the traditional methods based on product one dimensional
C.H.J. Johnson, T.H. Spurling
openaire   +1 more source

Second virial coefficient for directed manifolds

Physical Review A, 1991
The second virial coefficient for a D-dimensional polymerized manifold with only mutual repulsive interaction for the same internal D coordinate has been calculated using the perturbative renormalization-group method. This can be carried out to all orders of the perturbative expansion for this model.
openaire   +2 more sources

Negative Third Virial Coefficients of Methanol

The Journal of Chemical Physics, 1971
Abstract not available.
openaire   +2 more sources

GENERAL FORMULA FOR THE SECOND VIRIAL COEFFICIENT

Canadian Journal of Physics, 1961
A simple derivation is given of the quantum mechanical expression for the second virial coefficient in terms of the scattering phase shifts. The derivation does not require the introduction of a quantization volume and is based on the identity R(z)−R0(z) = R0(z)H1R(z), where R0(z) and R(z) are the resolvent operators corresponding to the unperturbed ...
openaire   +1 more source

Virial Coefficients and Equations of State for Hard Polyhedron Fluids.

Langmuir, 2017
M. E. Irrgang, Michael Engel, Michael Engel, A. Schultz, D. Kofke, S. Glotzer   +5 more
semanticscholar   +1 more source

Nonadditive three-body potential and third to eighth virial coefficients of carbon dioxide.

Journal of Chemical Physics, 2017
R. Hellmann
semanticscholar   +1 more source