✦ LIBER ✦

Is the Friedman Method Applicable to Transformations with Temperature Dependent Reaction Heat?

✍ Scribed by Nicolas Sbirrazzuoli

Book ID: 102483707
Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 160 KB
Volume: 208
Category: Article
ISSN: 1022-1352
DOI: 10.1002/macp.200700100

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

In the case of chemical reactions with temperature dependent reaction heat, differences in the activation energy values are obtained using the Friedman (FR) and the advanced non‐linear (NLN) isoconversional methods. The FR method leads to systematic errors when the reaction heat significantly changes with the heating rate (from 7 to 16%), while the advanced NLN isoconversional method that uses integrated values is not subject to these systematic errors. An explanation of this is given. For long time predictions, the FR method can lead to inaccurate results.

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