Thermodynamics of Electron Trapping and Solvation in the Quasi-ballistic Model

1 Thermodynamics of Electron Trapping and Solvation in the Quasi-ballistic Model 

Mozumder (1996) has discussed the thermodynamics of electron trapping and solvation, as well as that of reversible attachment-detachment reactions, within the context of the quasi-ballistic model of electron transport. In this model, as in the usual trapping model, the electron reacts with the solute mostly in the quasi-free state, in which it has an overwhelmingly high rate of reaction, even though it resides mostly in the trapped state (Allen and Holroyd, 1974 Allen et ah, 1975 Mozumder, 1995b). Overall equilibrium for the reversible reaction with a solute A is then represented as 

FIGURE 10.5 Standard free energy change, in various liquid hydrocarbons, versus temperature upon electron trapping from the quasi-free state according to the quasi-ballistic model. Reproduced from Mozumder, (1996), with the permission of Am. Chem. Soc.  

TABLE 10.5 Thermodynamic Parameters of Electron in Hydrocarbon Liquids According to the Quasi-ballistic Model 

All energies in kj/mol and entropy in J /(mol K). Overall uncretainty in free energy and enthalpy is -20% and that in entropy is -30%. 

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