In plotting Arrhenius plot for the imaginary electric modulus spectra or for the imaginary impedance spectra, the activation energy is measured. And what is the meaning if the value is lower? What is the meaning if the value is higher? What is the meaning if the value is positive and what is for negative values?
Generally, the activation energy is the necessitating energy for a system to pass from a transition state to another adjacent, .... It's determined experimental by the slope of the plot of the appropriate function as function of reciprocal absolute temperature.
The intercept on the ordinate gives an idea on the disorder, the entropy, etc...
Generally, we talk about equilibrium state when there is a true thermodynamic function, like enthalpy, etc....
Recently for the viscosity phenomenon in liquid systems, we have discover that the intercept on the abscissa gives the reverse of the called Arrhenius temperature (1/TA) whish is in correlation with the boiling point, ...i.e. it has certain physical meaning in the studied system.
For your domain, you can for example test the values of kBTA in eV and compare some different systems, maybe you find interesting interpretation, or prediction, etc...
The activation energy is the minimum energy for the reaction to takes place.
The activation energy is the minimum energy required to the interaction.
lower values of activation energy (less than 40 kJ/mol) means diffusion-control processes (physical reaction), while higher value (>40 kJ/mol) represents chemical reaction process.
There is no negative value of activation energy.
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