Average energy of interaction between

The average energy of interaction between two molecules of A is, therefore, (a) similarly for two molecules of Bit is... 

Jj( 1) is the potential energy of interaction between the point charge of electron 1 and electron 2 considered to be smeared out into a hypothetical charge cloud of charge density (charge per unit volume) - e)Hartree-Fock method considers average interelectronic interactions, rather than instantaneous inter-... 

The average potential energy of an atom is defined as the average of the virial of the forces exerted on it—as demonstrated later, this is the only non-arbitrary way of partitioning potential energies of interaction between systems. 

Our starting point is a restatement of the energy as a function of atomic positions, now stated in terms of the type of statistical distribution functions introduced in chap. 3. The purpose of the first part of our discussion is to establish a means for evaluating the quantity (H — Hq)). For simplicity, imagine that the potential energy of interaction between the various atoms is characterized by a pair potential of the form y( r — r ). Our claim is that the average value of the energy of... 

This implies that when the pure liquid solvent is chosen as the reference state, only terms involving canonical averages over the potential energy of interaction between the solute and the solvent (plus the changes in the internal free energies discussed in the previous section) contribute to the free energy of solvation at infinite dilution. At finite concentration, the solute-solute interaction terms have to be considered as well. 

The total polarization of a small volume of solution as measured by Die average moment depends on the total energy of interaction between molecules and between molecules and the... 

In the event that dipole 1 is also free to rotate, the energy of interaction is found by averaging Eq. (59) over all possible values of 6. Since the average value of cos is 1/3, the energy of interaction between the two freely rotating dipoles is given by ... 

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