Elements of
Chemical Reaction Engineering
6th Edition



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Essentials of
Chemical Reaction Engineering
Second Edition

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Chapter 3: Rate Laws

Transition State Theory

Derivation of qTx

We will assume that the energy states are sufficiently close together, such that there is a continuous distribution of energies. Replace Σ with ∫

Let:   

   (T10)

For 3-D

The translation partition function for y and z directions are similar to that for qTx

This is the result we have been looking for!
(T11)

We define Λ as thermal wave length

(m)
   (T12)

Order of Magnitude and Representative Values


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