The effects of imperfect temperature programming on the kinetic evaluation of thermoanalytical curves. Part 1. A simple mathematical example

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Abstract

In thermal analysis, the actual temperature inside the sample usually differs from the prescribed temperature. This fact may influence the evaluation of the kinetic parameters. In this paper the effects of slightly curved actual temperature-time functions are studied. It is shown that an alteration of about 5 K from the prescribed linear temperature program and its neglect in the kinetic evaluation can change the formal reaction order and the apparent activation energy by about 20%.

Original languageEnglish
Pages (from-to)31-41
Number of pages11
JournalThermochimica Acta
Volume59
Issue number1
DOIs
Publication statusPublished - Nov 16 1982

ASJC Scopus subject areas

  • Instrumentation
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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