Approximation of the Effectiveness Factor for Bimolecular Reactions

Calculate the effectiveness factor for the data given in Example 9.14, using the approximation 7.36. 

If the relative deviation between % and / is of the order of 10 %, the relative error in fj b will be, from Equation 7.44  

This is in agreement with Example 9.14 where it was found fj b = 0.330 and thus  

Therefore, we may conclude that approximation 7.36 is in fact very accurate. 

One final remark the formulae given in this example for An, and An0 could also have been obtained from Equations 9.17 and 9.18 by putting / = 1 and / = 0, respectively. 

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