Electronic Resource
Springer
Journal of thermal analysis and calorimetry
11 (1977), S. 445-447
ISSN:
1572-8943
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Rational approximations have been derived for the integral of the Arrhenius function $$\int\limits_0^T {\exp ( - E/RT)}$$ dT which is important in the kinetic analysis of thermogravimetric data. The first degree rational approximation is found to be equivalent to the Gorbachev approximation, i.e., RT2 exp (−E/RT)/(E+2RT). The second degree rational approximation is more accurate than the Zsakó empirical approximation when E/RT 〈 1 and E/RT 〉 5. The third and higher degree rational approximations are found to be more accurate than any other previous approximation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01903696
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