Exponential law equations

Heat transfer is an irreversible process that always takes place from a point of higher to one of lower temperature. The nonstationary cooling of an apparatus can be approximated by a simple Exponential law (Equation 2.3.1-1)... 

The conversion ranges of state I and state II depended on the structures and properties of the polymer network formed. At the beginning, the polymer radicals disappeared via bimolecular reactions according to the hjrperbolic law (equation (4.9)) and then by radical trapping according to an exponential law (equation (4.15)). The relative importance of these two processes depended mainly on radical mobilities, monomer functionality and chain transfer reaction. 

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