Question

The correct statement regarding the following energy diagrams is

• A. Reaction $M$ is faster and less exothermic than Reaction $N$
• B. Reaction $M$ is slower and less exothermic than Reaction $N$
• C. Reaction $M$ is faster and more exothermic than Reaction $N$
• D. Reaction $M$ is slower and more exothermic than Reaction $N$

Answer 1

Answer: (C)

In reaction $M$, there is only an intermediate step, so it is a fast reaction. Further, in reaction $M$ energy of product is much lesser than that of the reactant, as compared to as shown in reaction $N$. Thus, reaction $M$ is faster and more exothermic than reaction $N$.