The decomposition of formic acid can occur by the following mechanism:
HCOOH(aq) + H+
(aq) + H2O(l)
(aq) + CO(g)
a) Write the overall reaction equation.
a) HCOOH(aq) H2O(l) + CO(g)
b) reactant - HCOOH
products - H2O + CO
rxn intermed. - HCOOH2
activated complex – none identified
catalyst - H+
The exact shape of this diagram could vary, the important points would be
that the beginning (reactants) section of the graph would show a lower PE
than the ending (products) section – indicating an endothermic reaction.
The middle section should show three distinct peaks, each representing the
activated complex for each step of the reaction. With the information you
have the relative heights of the peaks and troughs are just guesswork
Again, the exact shape could vary, you have no information about the
steps of the uncatalyzed mechanism, Important features would be that the
two diagrams should have the same heights for the reactants and products
segments (H is unchanged) and the rise to the peak (or at least one of the
peaks if you have multiple peaks) must be higher that the highest rise of
the catalyzed reaction’s peaks (indicating higher Ea a slower rxn)
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