An energy profile for the reaction shows two local maxima separated by a local…
CHEMISTRY · Single correct · A Level · Chemistry · Introduction to organic chemistry · Introduction to organic chemistry
Problem
An energy profile for the reaction 2NO2(g)→2NO(g)+O2(g) shows two local maxima separated by a local minimum that lies 15kJ above the energy of the reactants. Which statement correctly describes the species associated with this local minimum?
(a) It is the transition state for the second step of the reaction mechanism.
(b) It represents an intermediate that could, in principle, be isolated under suitable conditions.
(c) It corresponds to the activated complex that converts directly into products.
(d) It is the reactant complex formed when two NO2 molecules first collide.