ex1 - CHEMISTRY 13 EXAM 1 1/31/06 FORM A -1. If the rate...

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CHEMISTRY 13 EXAM 1 1/31/06 FORM A ------------------------------------------------------------------------------------------------------------ 1. If the rate law for a reaction is determined to be: rate = k [NO] [Cl 2 ] 1/2 what is the order of the reaction for [NO] and the overall reaction order? A. first order in [NO] overall order = 1/2 B. zero order in [NO] overall order = 1/2 C. first order in [NO] overall order = 1.5 D. half order in [NO] overall order = 1 E. zero order in [NO] overall order = 1.5 ------------------------------------------------------------------------------------------------------------ 2. Consider the following kinetic data for the reaction: 2A + 3B products Experiment [A], M [B], M Initial Rate, M/s 1 0.10 0.10 7.00 x 10 5 2 0.20 0.10 2.80 x 10 4 3 0.20 0.20 2.80 x 10 4 The rate law for the reaction is: A. k [A] [B] B. k [A] 2 [B] C. k [A] 1/2 [B] D. k [A] [B] 2 E. k [A] 2 ------------------------------------------------------------------------------------------------------------ 3. The rate of formation of ozone O 3 was measured at 80 ° C and found to be 1.45 × 10 5 M/s. What is the rate of decomposition of O 2 under the same conditions? 3O 2 (g) 2O 3 (g) A. 0.967 × 10 5 M/s B. 1.45 × 10 5 M/s C. 2.90 × 10 5 M/s D. 2.17 × 10 5 M/s E. There is insufficient information to answer this. ------------------------------------------------------------------------------------------------------------
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4. If the rate law for a chemical reaction is: Rate = k [X] 2 [Y] 2 The rate constant k has units: A. M s 1 B. M 1 s 1 C. M 2 s 1 D. M 3 s 1 E. M 4 s 1 ------------------------------------------------------------------------------------------------------------ 5. The reaction OH (aq) + H + (aq) H 2 O(l) is an elementary reaction. The rate law for this reaction is: A. Rate = k B. Rate = k [OH ] [H + ] C. Rate = k [OH ] 2 D. Rate = k [H + ] 2 E. can’t be determined from the information provided ------------------------------------------------------------------------------------------------------------ 6. Consider the hypothetical reaction: A + 2B 2C + D The mechanism for the reaction is: k 1 2B X fast equilibrium k 1 k 2 X + A 2C + D slow Which of the following is the observed rate law for this reaction? k
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This note was uploaded on 07/23/2008 for the course CHEM 112 taught by Professor Vandersluys,lorschmid,kylem during the Fall '07 term at Pennsylvania State University, University Park.

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ex1 - CHEMISTRY 13 EXAM 1 1/31/06 FORM A -1. If the rate...

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