The right hand side of equation 7 has no exact solution and
several approximate solutions to thls equation have been
used to determine the order of reaction, energy of
activation and the pre-exponential factor. Bining (1992),
Agarwal (1986 and 1987), Lewallen (1974), Ramiah
(1970),and Chornet (1980) have assumed a first order
reaction approach and used graphical techniques for the
determination of activation energy and pre-exponential
factor. Anta1 (1980) and Raveendran (1992) have used the
thermogravimetric data to determine activation energy,
order of reaction and pre-exponential factor.