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- 2. Energy diagrams for two reactions are shown below. Reaction A Reaction B 70 40 - 60 - 20 50 40 - 30 -20- 20 40 10 60 Reaction Coordinate Reaction Coordinate Which reaction happens faster? Justify your choice with data from the graphs. (jow/r) KaaugConsider 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 cncrgyThe 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. 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?2. Reaction I has a AG of 16.2 kJ/mol and Reaction 2 has a AG of -62.1 kJ/mol. Which statement is correct about these two reactions? A. Reaction 1 occurs faster. B. Reaction 2 occurs faster. C. Both reactions occur at the same rate. D. Reaction I will never occur. E. It is impossible to know which reaction occurs faster with this information. Answer:Which reaction is slowest? Energy reaction coordinate B A Energy-> reaction coordinate Energy reaction coordinate с
- What is the effect of halving the amount of ethanol for this reaction? HO. Br heat the reaction rate decreases by half the reaction rate stays the same A. В. C. the reaction rate doubles D. the reaction rate quadruples ов ODQ7. Some spontaneous reactions take 20 million years for half of the reactants to be converted into products while other reactions take 10 seconds. What is the basis for this difference in rate? A. Reactions take longer the closer their ΔG is to zero. B. The rate is dependent upon the concentration of substrate molecules. C. Reactions where substrate molecules can more readily reach the transition state occur faster. D. The rate of the reaction is dependent upon a supply of energy - thus coupled reactions that utilize ATP are the fastest.Which reaction will be the fastest? ОНС. OHC. A: ОНС. ОНС. B: ОНС ОНС МеO. MeO С: Me Me D: ОНС. ОНС. E: ОНС ОНС
- 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. EnergyIdentify SN1 transition state properties. Choose one or more: O A. There are two transition states in an SN1 reaction. B. There is one transition state in an SN1 reaction. O C. The transition state(s) is/are higher in energy than the reactants. O D. The transition state(s) is/are lower in energy than the reactants. O E. The transition state(s) is/are higher in energy than the intermediate(s). F. The transition state(s) is/are lower in energy than the intermediate(s). O G. The transition state(s) have the same energy as the intermediate(s). O H. For a mechanism that contains n total steps, there must be ntotal transition states. O O6. Consider the following four energy diagrams: A B Potential energy Potential energy Reaction Reaction coordinate coordinate C D Potential energy Potential energy Reaction coordinate Reaction coordinate Which diagrams correspond with a two-step mechanism? Which diagrams correspond with a one-step mechanism? Compare energy diagrams A and C. Which has a relatively larger Ea? Compare diagrams A and C. Which has a negative AG? Compare diagrams A and D. Which has a positive AG? Compare all four energy diagrams. Which one exhibits the largest Ea? Which processes will have a value of Keq that is greater than 1? Which process will have a value of Keq that is roughly equal to 1?