Kinetics Parameter for Reversible Reaction
 

Hello everybody,
I'm using CFD Fluent to simulate gasification. There is a reversible reaction, so I turn on 'include backward reaction'. From 'Fluent Help', the kinetic of backward reaction is automatically calculated by fluent, is it right? But, I want to input values of E (activation energy) and A (pre-exponential factor) for both forward and backward reaction. Would you like to help me, how to do that?