2. Draw an approximate energy diagram for the following reaction a. It has two transition states and one intermediate b. The overall reaction is exothermic (exergonic) c. The first step is endothermic (endogonic) and fast d. The second step is exothermic (exergonic) and slow.
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- In each of the following three reaction coordinate diagrams, state: (a) Whether the reaction is exothermic or endothermic. (b) Whether the reaction is the slowest, the fastest, or intermediate in rate. (c) If all three reactions have the same entropy change between the reactant and product, which reaction has the largest favorable G0.Explain how you can tell from the energy diagram that the reaction with the catalyst in Fig. 8.4 isfaster than the reaction without the catalyst.The reaction diagram shown represents which type of reaction? Reaction Coordinate One-step, fast, exergonic a. One-step, fast, endergonic b. Two-step, fast, endergonic C. Two-step, slow, exergonic d. One-step, slow, exergonic е. Energy
- Consider the following energy diagram. Energy Reaction coordinate a. How many steps are involved in this reaction? b. Label AH and E₂ for each step, and label AH overall- c. Label each transition state. d. Which point on the graph corresponds to a reactive intermediate? e. Which step is rate-determining? f. Is the overall reaction endothermic or exothermic?Consider the energy diagram in Figure 6. Select the correct statements. * A- This reaction proceeds through a mechanism with three transition states. B- Step 1 determines the rate of the overall reaction. C- The first reactive intermediate is more stable than the second reactive intermediate. D- This reaction proceeds through a mechanism that has three elementary steps. E- The overall reaction is endothermicThe reaction diagram shown represents which type of reaction? Reaction Coordinate a. Two-step, slow, exergonic ab. Two-step, fast, endergonic o. One-step, fast, endergonic od. One-step, fast, exergonic e. One-step, slow, exergonic Energy
- 5. Draw the energy diagram for the following reaction in the reaction coordinate drawn below. HCI + H20 –→ H3O+ + Cl In your energy diagram, account for the fact that a) the reaction is very fast b) the reaction is strongly exergonic Clearly label all reactants, products, transition states, intermediates, and their energies.Consider the reaction energy diagram shown below. The reaction shown is reversible, it can proceed from reagents-> products or produCts->reagents. In which direction do you think the reaction has a higher rate constant, k? reactants Reaction pregresk O a. both k's are the same. b. reactants-> products has the higher k. C. reactants to products always has the larger k d. products -> reactants has the higher k. Posential cncrgy3. A reaction occurs in two steps. Both steps are exothermic, and the second step is the rate determining step. Draw an energy diagram showing energy versus reaction coordinate. Label the reactants, products, intermediates, and transition states. According to the Hammond postulate, will the second transition state resemble the intermediates or the products? ent ovie
- Compound A can be converted to either B or C. The energy diagrams for both processes are drawn on the graph below. E В A C Reaction coordinate a. Label each reaction as endothermic or exothermic. b. Which reaction is faster? c. Which reaction generates the product lower in energy? d. Which points on the graphs correspond to transition states? e. Label the energy of activation for each reaction. f. Label the AH for each reaction. EnergyReaction coordinate diagrams: Two-step diagram. Label the reactant (R), product (P), intermediate (I"), and transition states (TS; and TS2), plus the axis with appropriate units/labels. 1) Break the diagram up into 2 steps. Which one is the slow step? The fast step? 2) Endothermic or exothermic? Suppose a is added to step one. Sketch the effect of this addition on the diagram. You can identify the intermediates and by remembering: Intermediates are and then Catalysts are added to a reaction (like a reactant), and are at the end. Practice: Identify the reactants, products, intermediate(s), and catalyst(s). Put a star next to the rate-determining step. Step 1 A+B AB (fastest) Step 2 C + AB → ABC Step 3 ABC + D→ ACD + B (fast) diyConsider the following energy diagram. a.How many steps are involved in this reaction? b. Label ΔHo and Ea for each step, and label ΔHooverall. c.Label each transition state. d.Which point on the graph corresponds to a reactive intermediate? e.Which step is rate-determining? f. Is the overall reaction endothermic or exothermic?