26. CHAPTER 1 The Basics of Reaction Kinetics~hemical Reaction
Engineering 13significantly contributed to pollution reduction and
are one of the major success storiesfor chemical reaction
en~sim,ering.Insulation coverThe drawback of is that it is an
extensive variable, that is, it is dependentupon the mass of the
system. The fractional conversion, f, does not suffer from
thisproblem and can be related to . In general, reactants are not
initially present instoichiometric amounts and the reactant in the
least amount determines the maximumvalue for the extent of
reaction, max. This component, called the limitingcomponent
(subscript f) can be totally consumed when reaches max. Thus,The
fractional conversion is defined as:f(t) = (t)
such that it cannotreach max (where n/ 0), will approach its
equilibrium value eg (n/ =1= 0value of n/ determined by the
equilibrium constant). When a reaction is limited bythermodynamic
equilibrium in this fashion, the reaction has historically been
called