Question

The potential energy diagram for a reaction $X \rightarrow Y$ is given. A and C in the graph corresponding to

• A. A $\rightarrow$ activation energy , $C \rightarrow \Delta Hº$
• B. A $\rightarrow$ energy of reactants , C $\rightarrow$ energy of product
• C. $A \rightarrow \Delta Hº,C \rightarrow$activation energy
• D. A $\rightarrow$activation energy , C $\rightarrow$threshold energy

Answer 1

Answer: (A)

A $\rightarrow$ activation energy , $C \rightarrow \Delta Hº$

Answer 2

$\Delta Hº$ is the difference in energy of reactant and

products.

Activation energy is minimum energy of a reaction at which activated complex is formed.