Chapter 14a - Chemistry 11e(Brown/Lemay/Bursten/Murphy...

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Chemistry, 11e(Brown/Lemay/Bursten/Murphy) Chapter 14: Chemical Kinetics 14.1 Multiple-Choice and Bimodal Questions 1) Consider the following reaction: 3A 2B The average rate of appearance of B is given by B t . Comparing the rate of appearance of B and the rate of disappearance of A, we get [B] t _____ (   [A] t ) A) -2/3 B) +2/3 C) -3/2 D) +1 E) +3/2 Answer: B Diff: 1 Page Ref: Sec. 14.2 2) Nitrogen dioxide decomposes to nitric oxide and oxygen via the reaction: 2NO 2 2NO O 2 In a particular experiment at 300 °C, [NO 2 ] drops from 0.0100 to 0.00650 M in 100s The rate of appearance of O 2 for this period is __________ M/s.
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3) Which substance in the reaction below either appears or disappears the fastest? 4NH 3 +7O 2 4NO 2 +6H 2 O 4) Consider the following reaction: A 2C The average rate of appearance of C is given by C t . Comparing the rate of appearance of C and the rate of disappearance of A, we get C t _____ (  A t ) .
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