An evaluation of the relationship between kinetic data collection off dtg curves and its corresponding r-square and activation energy values for kinetic plots

摘要

As an evaporation process takes place from a well-defined constant surface area, it would be appropriate to conclude that the process is a zero order reaction [1]. When an evaporation process is being carried out on a TG instrument, a kinetic plot may be obtained by collecting data points off the DTG curve. Kinetic plots for zero order processes have been constructed on a regular basis since the establishment of the Arrhenius equation. Nevertheless, very little attention has been paid on evaluating and improving the fit of the line that represents the slope of the plot.