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Compensation law again

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Abstract

Some preliminary considerations suggest that the so-called ‘compensation law’ is a result of the misinterpretation of evaluation procedure. The both parameters: pre-exponential factor and activation energy are calculated from the same set of experimental data. A confidence ellipse could describe the precision of these parameters. In the case of using the least square method for straight-line parameters evaluation, we could calculate a axes of the ellipse, using experimental data. If the observed relationship between pre-exponential factor and activation energy agree with the ‘pre-calculated’ direction of main axis of confidence ellipse, we have a strong support to believe that the observed ‘compensation’ effect is only an artificial effect of misinterpretation. Some calculations performed for a published experimental data have confirmed these suspicions. This also, indirectly indicates that precision of such experiments is probably lower than expected.

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Authors and Affiliations

  1. Department of Non-Ferrous Metallurgy, AGH — University of Science and Technology, Cracow, Poland

    J. Norwisz & T. Musielak

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  1. J. Norwisz
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  2. T. Musielak
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Correspondence to J. Norwisz.

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Norwisz, J., Musielak, T. Compensation law again. J Therm Anal Calorim 88, 751–755 (2007). https://doi.org/10.1007/s10973-006-8139-4

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