Abstract
The importance of determining the volume of activation in chemical kinetic studies of the shock initiation of explosives is emphasized. Volumes of activation and energies of activation are calculated, utilizing existing thermal ignition-time data for shocked nitromethane. Two important conclusions are drawn from the calculations: (1) incorrect values of the energy of activation may be obtained when the volume of activation is ignored; and (2) the existing ignition time data can yield large ranges of values for the volume and energy of activation from which it is impossible to determine and interpret the correct reaction mechanisms.
Published Version
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