Separability of energy

Requirements for a Mechanistic Model. A significant problem in the use of mechanistic models for the description of the oxide-electrolyte interface is the separation of observed energy of interaction into electrostatic and chemical components. If the separation of energy into these components is completely indeterminate, the apparent mechanistic model may degenerate to an empirical model, being of the correct mathematical form to represent the data, but offering no insight into the chemical nature of the interface. [Pg.56]

Ionization potential, adiabatic if available. r Separation of energy levels from U V spectra. [Pg.24]

Now it can be argued that the MO calculation actually applies to Rv and that in order to evaluate / we should equate the multiple of / given by theory to Rr and not / cxp. In order to do this, Ec must be calculated. For benzenet Ec has been estimated to be -37 kcal/mol. From this we estimate that Rv = 36 + 37 = 73 kcal/mol, and hence / must be about 37 kcal/mol, or about twice the value used in the calculations of experimental resonance energies. Thus, for estimating the actual separations of energy levels in the real molecule, this larger value of ft should be more nearly correct. [Pg.439]

At least equally importantly perturbation theory, with its separation of energy changes explicitly into dependence on powers of chosen parameters, enables separate conceptual effects to be identified and evaluated. [Pg.699]

Plot (a) was obtained from an organic dye and plot (b) was obtained from a quantum dot suspension. For an organic dye solution, since the sizes of organic dye molecules are the same and the quantum levels (n) arc well fixed so a distinct absoiption spectrum will be obtained. For a quantum dot suspension, due to the diameter variation of quantum dots and variable quantum transition levels, the separation of energy levels will vary as l /r ). Therefore, the w avelength of light that can cause excitation w ill also vary. [Pg.179]

Separation of energy levels to eliminate cross-talk and radiated noise pickup... [Pg.211]

The confinement system for NFR is based on separation of energy and controlled release concepts. The system Is designed so the thermal energy in the primary loop would be released from the building... [Pg.181]

The same property of factorization applied to the internal energy states — in so far as there is approximate separability of energies— allows similar equations to be obtained relating to rotational, vibrational and electronic distribution functions. For example, the number of molecules in the tth rotational level, irrespective of the particular translational, vibrational... [Pg.386]

The value of A varies from a fraction of a cm for the very lightest atoms to a few thousand cm for the heaviest ones. The extent to which states of different J values are populated at ambient temperature depends on how large their separation is compared with the thermal energy available, kT at 300 K, kT 200 cm or 2.6kJmoF. It can be shown theoretically that if the separation of energy... [Pg.702]

In order to observe emission it is necessary to populate a higher lying unoccupied quantised state. A molecule in a vibrationally excited state has a certain probability of emitting IR radiation in the presence or absence of incident electromagnetic radiation, resulting in induced and spontaneous emission, respectively. At r.t. the number of molecules in a first excited state is less than 1% of the population in the ground state, when the separation of energy levels is... [Pg.72]

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