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Determination of Kinetic Parameters using Linearly Increasing Temperature
Author(s) -
RHIM J. W.,
NUNES R. V.,
JONES V. A.,
SWARTZEL K. R.
Publication year - 1989
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1989.tb03103.x
Subject(s) - hydrolysis , kinetic energy , isothermal process , chemistry , activation energy , aqueous solution , order of reaction , kinetics , thermodynamics , chromatography , reaction rate constant , organic chemistry , physics , quantum mechanics
For a linearly increasing temperature, a differential kinetic model is presented for the determination of kinetic parameters, i.e. activation energy, frequency factor, and reaction order. The performance of this method is illustrated by using two well known chemical reactions: acid‐catalyzed sucrose hydrolysis and hydrolysis of N‐acetyl‐p‐aminophenol in aqueous solution. Both computer generated and experimentally determined data sets were used for sucrose hydrolysis and published data were employed in the N‐acetyl‐p‐aminophenol hydrolysis. The results obtained by this method agree well with isothermal kinetic data, for the first reaction, and nonisothermal data, for the second reaction. This method is faster, and more accurate than previously reported methods.