For a reaction, A $\to$ B, enthalpy of reaction is $-$4.2 kJ mol$-$1 and enthalpy of activation is 9.6 kJ mol$-$1. The correct potential energy profile for the reaction is shown in option.

Question

For a reaction, A $\to$ B, enthalpy of reaction is $-$4.2 kJ mol^$-$1 and enthalpy of activation is 9.6 kJ mol^$-$1. The correct potential energy profile for the reaction is shown in option.