3. Consider the three step mechanism for a reaction is proposed for the synthesis of Formaldehyde: Step 1 Step 2 Step 3 H2 2H fast endothermic • co H• HCO нсо slow, endothermic H2CO fast, exothermic The reaction is overall exothermic. 1. What is the overall reaction? Draw a potential energy diagram for this reaction. Be sure to include ail necessary dentities such as E, AH, TS, reactants, products, etc.

3. Consider the three step mechanism for a reaction is proposed for the synthesis of Formaldehyde: Step 1 Step 2 Step 3 H2 2H fast endothermic • co H• HCO нсо slow, endothermic H2CO fast, exothermic The reaction is overall exothermic. 1. What is the overall reaction? Draw a potential energy diagram for this reaction. Be sure to include ail necessary dentities such as E, AH, TS, reactants, products, etc.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Which reaction is the fastest, which is the slowest? I want to check my work and see if I am correct
11. Draw a potential energy diagram for a two-step reaction in which the activation energies are 10 kcal/mol (first step) and 3 kcal/mole (second step), the intermediate is 5 kcal/mol higher in energy than the reactants, and the products are 1 kcal/mol lower in energy than the reactants. Label both axes and positions on the curve that correspond to reactants (R), the intermediate (I), transition states (TS₁, TS₂), and products (P). Indicate the activation barriers with vertical lines and the labels Ea1 and Ea2.
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Use the information given in the following paragraph and energy diagram to answer questions 5-10. The mechanism for the reaction 2A D is illustrated in the following energy diagram where the X- axis is "reaction progress" and the Y-axis is "enthalpy". A is the reactant and D is the product. The reaction has a rate constant of 5.0x102² Mr¹ sec" when no catalyst is present. The equilibrium constant for the overall reaction at 25°C is K [D] = -=1.1×102. [A]² R D 9. You proposed the following mechanism for the overall reaction 2A D based on the energy diagram Step 1. A B (slow), with forward rate constant, k₂ (fast equilibrium), with forward rate constant, k₁, reverse rate constant k.] and equilibrium constant, K₁. Step 2. B 2C Step 3. A+2C D (fast), with forward rate constant, k3 Your classmate pointed out that your mechanism is incorrect. Why is your mechanism incorrect? a. Your mechanism does not incorporate the use of a catalyst b. Your mechanism is not consistent with the experimental…
3. Draw a reaction energy diagram, and label the product (P), reactant (R), transition states (TS1, TS2, etc.), intermediates (INT1, INT2, etc.) and activation energies (AG‡₁, AG 2, etc.) for a reaction with the following criteria: i. A three-step, endothermic reaction; ii. AG3 > 0 but AG₁ AG‡₁ >> AG‡₂. Which species does the structure of the transition state of the rate-determining step resemble?
8. The reaction profile shown to the right represents energy changes as a reaction proceeds. a) How many elementary reactions are in the reaction mechanism? b) Which step is rate determining? c) Is the overall reaction endothermic or exothermic? Reaction progess Potential energy
Consider the following mechanism: Cl2 → Cl+ + Cl- Cl- + H2S → HCl + HS- Cl+ + HS- → HCl + S What is the role of Cl+? A. product B. intermediate C. catalyst D. reactant
Please explain properly.
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species A converts into a product species E. Energy A B Exothermic and A Exothermic and B Exothermic and C A E C 2 D Reaction Progress B is rate determining. C is rate determining. D is rate determining. 3h in which a reactant Is the overall reaction exothermic or endothermic? And which step is the rate determining step? E
Energy (kJ) Energy (kJ) Why do catalysts increase reaction rate? Catalyst Effect on Reaction Path Examples. Catalytic Convertors Reactants Products Interpret the following potential energy diagrams (reaction coordinate diagrams) Reaction 1 Reaction 2 450T B. A+B Time Reaction coordinate, A B A + B → C 1. Which reaction is endothermic? 2. What is the activation energy of Reaction 1? 3. What is the AHrxn of reaction 1? 4. What is the activation energy of reaction 2? 5. What is the AHnn of reaction 2? 6. Sketch the effect of a catalyst on both reactions 7. Does a catalyst effect the AHrn?