The GMA representation for a reversible reaction

Another, very frequent reaction scheme is the one of a reversible reaction  

For simplicity sake, let s assume that El is a second order reaction in which both reactants are different (as discussed in chapter 6), whereas E2 is best represented by a first order reaction. 

As in the previous example, we can write the rate equations for the different components, namely R, L and RL. Let s start with RL and write the rate equations for the two reactions. Looking at the production of RL we can write for El  

We can combine the two elementary reactions and write for the overall reaction  

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