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Solids energy

I. Gas-Solid Energies and Properties of Isolated Adsorbed Atoms. [Pg.121]

But many computations of phase-formation based on the application of pseudo-potential, quantum-mechanical techniques, statistic-thermodynamic theories are carried out now only for comparatively small number of systems, for instance [1-3], A lot of papers dedicated to the phenomenon of isomorphic replacement, arrangement of an adequate model of solids, energy theories of solid solutions, for instance [4-7], But for the majority of actual systems many problems of theoretical and prognostic assessment of phase-formation, solubility and stable phase formation are still unsolved. [Pg.204]

Solid energy balance Solid mass balance (4)... [Pg.57]

As in Section IV for naphthalene vapor, the kinetic spectra of solids are presented by plotting on the abscissa axis the quantity Ep = (hv — incident photon,

work function of the solid (energy of electron abstraction). Ekin is the photoelectron kinetic energy, which is lower than the theoretical upper energy limit of kinetic energy because of internal energy... [Pg.415]

For direct Af-electron variational methods, the computational effort increases so rapidly with increasing N that alternative simplified methods must be used for calculations of the electronic structure of large molecules and solids. Especially for calculations of the electronic energy levels of solids (energy-band structure), the methodology of choice is that of independent-electron models, usually in the framework of density functional theory [189, 321, 90], When restricted to local potentials, as in the local-density approximation (LDA), this is a valid variational theory for any A-electron system. It can readily be applied to heavy atoms by relativistic or semirelativistic modification of the kinetic energy operator in the orbital Kohn-Sham equations [229, 384],... [Pg.93]

Values of surface solid energy obtained form the advancing contact angles using EQS considering the measured value of water surface tension of 71.8 mN/m... [Pg.77]

However, what needs to be considered is the societal convenience of liquid fuels, which makes them a preferred choice even when coming with a high markup. Science on energy storage also has to consider such issues (e.g. how to create convenience with solid energy carriers). [Pg.130]

Solid Energy Balance. The solid-phase energy balance is composed of terms related to thermal communication with the walls of neighboring unit cells, with the two gas-phase compartments of unit cell (k, ), and of the electrical work produced. For clarity, we have elected to show these terms in detail. [Pg.176]

On the right-hand side of the solids energy balance, the first term represents the gas-solids heat transfer, and the second term is the heat gain and loss from the solids reactions. Exothermic reactions have a negative heat of reaction and endothermic reactions have a positive heat of reaction. The local gas-solids heat transfer coefficient is indicated by hGS, AGS is the local gas-solids heat transfer area, TG is the gas stream absolute temperature, and AHi are the heats of reaction. [Pg.335]

Q. Yan and J.J. de Pablo, Hyper-Parallel Tempering Monte Carlo Application to the Lennard-Jones Fluid and the Restricted Primitive Model, J. Chem. Phys. Ill (1999) pp. 9509-9516 W.A. Steele, Physical Interaction of Gases with Crystalline Solids 1. Gas-Solid Energies and Properties of Isolated Adsorbed Atoms, Surf. Sci 36 (1973) pp. 317-352... [Pg.16]

Of course, most surfeces are not exposed large single crystal faces. However the variations in gas-solid energy with changes in the lateral position t over the surface will reflect the atomic structure of the surface even if it is amorphous or if it is a defective crystal plane or planes. Many of the simulations of physical adsorption have been devoted to investigations of the effects of these variations upon the structural and thermodynamic properties of the adsorbed films [13]. Often, the reference system for the simulations is the adsorption produced by the structureless surface that means a surface for which the term in equation (13) with g=0 is the only one. In the case of an inverse 12-6 power site-site energy [14],... [Pg.589]

W. A. Steele, The Physical Interaction of Gases with Crystalline Solids. I. Gas-Solid Energies and Properties of Isolated Adsorbed Atoms, Surf. Sci. 36 (1973)317-352. [Pg.621]

H-donor strength of the solute or its chemical class Volumetric coefficient of expansion of the solute in liquid state volumetric coefficient of expansion of the solute in solid state H-acceptor strength of the solute or its chemical class liquid - solid energy/mol temperature... [Pg.612]

One of the problems with VMC is that it favors simple states over more complicated states. As an example, consider the liquid-solid transition in helium at zero temperature. The solid wave function is simpler than the liquid wave function because in the solid the particles are localized so that the phase space that the atoms explore is much reduced. This biases the difference between the liquid and solid variational energies for the same type of trial function, (e.g. a pair product form, see below) since the solid energy will be closer to the exact result than the liquid. Hence, the transition density will be systematically lower than the experimental value. Another illustration is the calculation of the polarization energy of liquid He. The wave function for fully polarized helium is simpler than for unpolarized helium because antisymmetry requirements are higher in the polarized phase so that the spin susceptibility computed at the pair product level has the wrong sign ... [Pg.647]

Changes in energy of incident electrons after scattering by a solid Energy loss spectroscopy ELS... [Pg.178]

Steele, W.A. (1973).The physical interaction of gases with crystalline solids. I. Gas-solid energies and properties of isolated adsorbed atoms. Surf. Sci., 36, 317-52. [Pg.99]

Functional Oxides Molecular Materials Porous Materials Low-Dimensional Solids Energy Materials... [Pg.365]

The computational model follows that reported in Henneke and Ellzey [13]. The following conservation equations for mass, gas energy, solid energy, and gas species are solved in the computational model ... [Pg.146]

Coal as a solid energy carrier was later complemented by liquid crude oil and natural gas. Not only did the state of the energy carrier change with time, from solid to liquid and finally gas, but also the amount of hydrogen in the fuel increased from zero to four hydrogen atoms per carbon atom. [Pg.2]

Research Center of Albi on Particulate Solids, Energy and Environment Albi School of Mines Albi, France... [Pg.1514]


See other pages where Solids energy is mentioned: [Pg.222]    [Pg.274]    [Pg.286]    [Pg.195]    [Pg.148]    [Pg.366]    [Pg.366]    [Pg.3780]    [Pg.589]    [Pg.589]    [Pg.594]    [Pg.594]    [Pg.601]    [Pg.616]    [Pg.1605]    [Pg.186]    [Pg.186]    [Pg.252]    [Pg.168]    [Pg.173]    [Pg.181]    [Pg.323]    [Pg.280]    [Pg.684]    [Pg.567]    [Pg.500]    [Pg.20]   
See also in sourсe #XX -- [ Pg.49 , Pg.50 , Pg.53 , Pg.63 ]




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