For an exothermic reaction,the following two | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The reaction proceeds in two steps,which means there will be two peaks in the potential energy diagram,corresponding to two transition states.Step

Vedclass · Accepted Answer

Vedclass · Answer

(B) The reaction proceeds in two steps,which means there will be two peaks in the potential energy diagram,corresponding to two transition states.Step $1$ is the slow step,meaning it has a higher activation energy $(E_a)$ compared to the second step.Step $2$ is the fast step,meaning it has a lower activation energy $(E_a)$.Since the reaction is exothermic,the potential energy of the product $(AB)$ must be lower than the potential energy of the reactants $(A+B)$.Graph $A$ shows two steps where the first peak is lower than the second,which contradicts the slow step having a higher activation energy.Graph $B$ shows two steps where the first peak is higher than the second,and the final product energy is lower than the reactant energy,which is consistent with the given conditions.Graph $C$ shows only one step.Graph $D$ shows two steps,but the product energy is higher than the reactant energy,which represents an endothermic reaction.

For an exothermic reaction,the following two steps are involved:
Step $1$: $A + B \to I$ $(slow)$
Step $2$: $I \to AB$ $(fast)$
Which of the following graphs correctly represents this reaction?

Similar Questions

Activation energy of a chemical reaction can be determined by

Identify the intermediate formed in the reaction $H_2 + I_2 \rightarrow 2 HI$.

Slope of the straight line obtained by plotting $\log_{10} k$ against $\frac{1}{T}$ represents which term?

For an endothermic reaction,where $\Delta H$ represents the enthalpy of the reaction in $kJ/mol$,the minimum value for the energy of activation will be

If $E_f$ and $E_r$ are the activation energies of forward and reverse reactions and the reaction is known to be exothermic,then

Vedclass Test Series

Exam Paper Generator

Online Exam Module

For an exothermic reaction,the following two steps are involved:Step $1$: $A + B \to I$ $(slow)$Step $2$: $I \to AB$ $(fast)$Which of the following graphs correctly represents this reaction?