Extent of Reaction A State Variable for Chemical Systems

Source L. Pauling, The Nature of the Chemical Bond, 1960, Cornell University Press, Ithaca NY. [Pg.57]

This is a good way of estimating the reactions enthalpy of a large number of reaction using a relatively small table of average bond enthalpies. Table 2.4 lists some average bond enthalpies. With this table the reaction enthalpies of a large number of reactions can be estimated. [Pg.57]

5 Extent of Reaction A State Variable for Chemical Systems [Pg.57]

In every chemical reaction the changes in the mole numbers dN are related through the stoichiometry of the reaction. In fact, only one parameter is required to specify the changes in mole numbers resulting from a particular chemical reaction. Consider the following elementary chemical reaction [Pg.57]

In this case the changes in the mole numbers dNx, dN and dNc of the components A, B and C are related by the stoichiometry. We can express this [Pg.57]

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