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3. The values for the The value of E, for the reve a. E, for the forward reaction d. the sum of E, and AH e, the 4. Which applies to a reaction as it proceeds at constant temperat I. The rate of the reaction decreases. d. II and III only c. I and II only II. The effectiveness of collisions between reactant molecules remains the same. b. II only III. The frequency of collisions between reactant molecules remains the same. a. I only e. I, II, and Ill b. increase in AS for the reaction ich accounts for the increase in the rate of reaction when a catalyst is added to a reaction system? d. increase in potential energy of the products se in AH for the reaction jal energy of the reactants y of the activated complex that is correct that is less than the activation energy

3. The values for the The value of E, for the reve a. E, for the forward reaction d. the sum of E, and AH e, the 4. Which applies to a reaction as it proceeds at constant temperat I. The rate of the reaction decreases. d. II and III only c. I and II only II. The effectiveness of collisions between reactant molecules remains the same. b. II only III. The frequency of collisions between reactant molecules remains the same. a. I only e. I, II, and Ill b. increase in AS for the reaction ich accounts for the increase in the rate of reaction when a catalyst is added to a reaction system? d. increase in potential energy of the products se in AH for the reaction jal energy of the reactants y of the activated complex that is correct that is less than the activation energy

Chemistry
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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Name: Madison Castle Riverdale Collegiate Institute Part A: Multiple Choice Do NOT WRITE anywhere on this page. 1. Which of the following is a rate law for which the units of rate are equal to the units of the rate constant? a. Rate-k [A] b. Rate=k [A]2 c. Rate= k [A][B]³ d. Rate= k [A][B][C]² e. Rate-k [A][B] 2. For the reaction 2 NO₂+ F₂→2 NO₂F the proposed mechanism is: (slow) (fast) step 1: NO₂+F₂-NO₂F+F step 2: F+NO₂ → NO₂F Which of the following is/are correct: I. II. III. c. I and III only b. I and II only The reaction is first order with respect to F₂ a. I only The mechanism supports an experimentally determined rate law of rate = k[NO2]²[F₂] F is a reaction intermediate a. E, for the forward reaction d. the sum of E, and AH b.-(E) for the forward reaction e. the difference between AH and E d. II and III only 3. The values for the change in enthalpy, AH, and the activation energy, E., for a given reaction are known. The value of E, for the reverse reaction equals 4. Which applies to a reaction as it proceeds at constant temperature? I. The rate of the reaction decreases. d. II and III only c. I and II only II. The effectiveness of collisions between reactant molecules remains the same. b. II only III. The frequency of collisions between reactant molecules remains the same. a. I only c. the sum of -(AH) and E, c. increase in potential energy of the reactants e. decrease in potential energy of the activated complex b. e. I, II, and III b. increase in AS for the reaction 5. Which accounts for the increase in the rate of reaction when a catalyst is added to a reaction system? a. decrease in AH for the reaction d. increase in potential energy of the products e. I, II, and III 6. Collision theory predicts all of the following except that a. a reaction will only occur if the collision orientation is correct a reaction will not occur if the collision occurs with energy that is less than the activation energy a reaction will not occur if the reactants do not collide C. d. frequency of collisions will increase with increasing temperature e. more successful collisions will occur for a reaction with a larger activation energy 7. Which statement correctly reflects the relative changes in concentrations of reactant and products for the reaction Na+ 3H2NH? [H.] decreases at the same rate [N₂] decreases b. [H.] decreases at the rate [NH,] increases e. [N] increases at the same rate as [NH,] decreases d. [N] increases at the rate [NH,] decreases e. [N] decreases at the rate [NH,] increases lausible reaction m add up to
Transcribed Image Text:Name: Madison Castle Riverdale Collegiate Institute Part A: Multiple Choice Do NOT WRITE anywhere on this page. 1. Which of the following is a rate law for which the units of rate are equal to the units of the rate constant? a. Rate-k [A] b. Rate=k [A]2 c. Rate= k [A][B]³ d. Rate= k [A][B][C]² e. Rate-k [A][B] 2. For the reaction 2 NO₂+ F₂→2 NO₂F the proposed mechanism is: (slow) (fast) step 1: NO₂+F₂-NO₂F+F step 2: F+NO₂ → NO₂F Which of the following is/are correct: I. II. III. c. I and III only b. I and II only The reaction is first order with respect to F₂ a. I only The mechanism supports an experimentally determined rate law of rate = k[NO2]²[F₂] F is a reaction intermediate a. E, for the forward reaction d. the sum of E, and AH b.-(E) for the forward reaction e. the difference between AH and E d. II and III only 3. The values for the change in enthalpy, AH, and the activation energy, E., for a given reaction are known. The value of E, for the reverse reaction equals 4. Which applies to a reaction as it proceeds at constant temperature? I. The rate of the reaction decreases. d. II and III only c. I and II only II. The effectiveness of collisions between reactant molecules remains the same. b. II only III. The frequency of collisions between reactant molecules remains the same. a. I only c. the sum of -(AH) and E, c. increase in potential energy of the reactants e. decrease in potential energy of the activated complex b. e. I, II, and III b. increase in AS for the reaction 5. Which accounts for the increase in the rate of reaction when a catalyst is added to a reaction system? a. decrease in AH for the reaction d. increase in potential energy of the products e. I, II, and III 6. Collision theory predicts all of the following except that a. a reaction will only occur if the collision orientation is correct a reaction will not occur if the collision occurs with energy that is less than the activation energy a reaction will not occur if the reactants do not collide C. d. frequency of collisions will increase with increasing temperature e. more successful collisions will occur for a reaction with a larger activation energy 7. Which statement correctly reflects the relative changes in concentrations of reactant and products for the reaction Na+ 3H2NH? [H.] decreases at the same rate [N₂] decreases b. [H.] decreases at the rate [NH,] increases e. [N] increases at the same rate as [NH,] decreases d. [N] increases at the rate [NH,] decreases e. [N] decreases at the rate [NH,] increases lausible reaction m add up to
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