6. Thermodynamics and Kinetics
Energy Diagram
62PRACTICE PROBLEM
For the reaction-energy diagram shown below:
(i) Give the appropriate label for the reactants, products, and activation energy for the first and the second step of the reaction.
(ii) Determine the sign of ∆Hº for the overall reaction, and identify whether the overall reaction is exothermic or endothermic.
(iii) Identify parts of the reaction-energy diagram that correspond to intermediates and transition states.
(iv) Identify part of the diagram that corresponds to the transition state of the rate-limiting step. Is the structure of this transition state similar to the reactants, the products, or an intermediate?
![](https://lightcat-files.s3.amazonaws.com/problem_images/7da80bbb0ea884fa-1668015674088.jpg)
For the reaction-energy diagram shown below:
(i) Give the appropriate label for the reactants, products, and activation energy for the first and the second step of the reaction.
(ii) Determine the sign of ∆Hº for the overall reaction, and identify whether the overall reaction is exothermic or endothermic.
(iii) Identify parts of the reaction-energy diagram that correspond to intermediates and transition states.
(iv) Identify part of the diagram that corresponds to the transition state of the rate-limiting step. Is the structure of this transition state similar to the reactants, the products, or an intermediate?