They mention the exergonic reactions in such systems could have been a source of free energy that promoted chemical reactions, additional to their high mineralogical diversity which implies the induction of important chemical gradients, thus favoring the interaction between electron donors and acceptors.
12.
It is surprising that for redox reactions according to the Marcus formula the activation energy should increase for very exergonic reaction, i . e . in the cases when & Delta; G 0 is negative and its absolute value is greater than that of & lambda; o.
