question_answer

For a reversible chemical reaction where the forward process is exothermic, which of the following statements is correct?

A)  The backward reaction has higher activation energy than the forward reaction

B)  The backward and the forward processes have the same activation energy

C)  The backward reaction has lower activation energy

D)  No activation energy is required at all since energy is liberated in the process

Correct Answer: A

Solution :

                 The energy profile diagram  for a exothermic reaction is as \[\therefore \]                  \[{{({{E}_{a}})}_{b}}>{{({{E}_{a}})}_{f}}\]