The additional conceptually derivable constraints on a function that models the kinetic-thermodynamic relationship involve the limits at extreme driving forces. As the reaction energy approaches positive infinity, the factors stabilising the energy barrier must become completely decoupled from the starting material. At this point, the barrier must be equal to the reaction energy plus an offset independent of the reactant energy and, hence, independent of ΔEr. This is represented as ∆𝐸 r + 𝐸 𝑟𝑒𝑜𝑟𝑔 , where 𝐸 𝑟𝑒𝑜𝑟𝑔 is a ΔEr-independent reorganisation energy of the product. The reverse is also true: as the reaction energy approaches negative infinity,