In a study of the decomposition of ammonia on a platinum surface at 856 °C NH31/2 N2 + 3/2 H, the following data were obtained: NH3), M seconds 3.90x10-3 1000 1.95×10-3 1.50x103 9.75x10-4 1.75x103 7.80×10-3 Hint: It is not necessary to graph these data. (1) The observed half life for this reaction when the starting concentration is 7.80×103 M i ( Mis [ Js and when the starting concentration is 3.90×10-3 (2) The average rate of disappearance of NH3 from t =0 s to t = 1000 s is| ]Ms'. (3) The average rate of disappearance of NH3 from t=1000 s to t = 1.50×10³ s is ]Ms!. (4) Based on these data, the rate constant for this [ ) order reaction is | Ms!.

In a study of the decomposition of ammonia on a platinum surface at 856 °C NH31/2 N2 + 3/2 H, the following data were obtained: NH3), M seconds 3.90x10-3 1000 1.95×10-3 1.50x103 9.75x10-4 1.75x103 7.80×10-3 Hint: It is not necessary to graph these data. (1) The observed half life for this reaction when the starting concentration is 7.80×103 M i ( Mis [ Js and when the starting concentration is 3.90×10-3 (2) The average rate of disappearance of NH3 from t =0 s to t = 1000 s is| ]Ms'. (3) The average rate of disappearance of NH3 from t=1000 s to t = 1.50×10³ s is ]Ms!. (4) Based on these data, the rate constant for this [ ) order reaction is | Ms!.

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter11: Chemical Kinetics

Section: Chapter Questions

Problem 1ALQ

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