Question

In activation energy for a simple Chemical reaction $A \to B$ is $E_{a}$ in forward direction. The activation energy for reverse reaction

• A. can be less than or more than $E_{a}$
• B. is always double of $E_{a}$
• C. is negative of $E_{a}$
• D. is always less than $E_{a}$

Answer 1

Answer: (A)

can be less than or more than $E_{a}$

Answer 2

In activation energy for a simple chemical reaction $A \longrightarrow B$ is $E _{ a }$ in forward direction. The activation energy for reverse reaction can be less than or more than $E _{ a }$. The concept of activation energy gives an idea whether a given reaction is slow or fast at a given temperature. If the product is stable then activation energy for reverse reaction is more than $E _{ a ^{\prime}}$ but if the product is less stable then activation energy is less than $E _{ a }$