In a study of the decomposition of ammonia on a platinum surface at 856 °C NH31/2 N2 + 3/2 H2 the following data were obtained: [NH3], M 1.36×10-2 6.80×10-3 3.40×10-3 1.70×10-3 seconds 0 1000 1.50×103 1.76×103 Hint: It is not necessary to graph these data. (1) The observed half life for this reaction when the starting concentration is 1.36×10-2 M is s and when the starting concentration is 6.80×10-3 M is s. (2) The average rate of disappearance of NH3 from t = 0 s to t = 1000 s is M s-1. (3) The average rate of disappearance of NH3 from t = 1000 s to t = 1.50×103 s is M s-1.

In a study of the decomposition of ammonia on a platinum surface at 856 °C NH31/2 N2 + 3/2 H2 the following data were obtained: [NH3], M 1.36×10-2 6.80×10-3 3.40×10-3 1.70×10-3 seconds 0 1000 1.50×103 1.76×103 Hint: It is not necessary to graph these data. (1) The observed half life for this reaction when the starting concentration is 1.36×10-2 M is s and when the starting concentration is 6.80×10-3 M is s. (2) The average rate of disappearance of NH3 from t = 0 s to t = 1000 s is M s-1. (3) The average rate of disappearance of NH3 from t = 1000 s to t = 1.50×103 s is M s-1.

Chemistry for Engineering Students

3rd Edition

ISBN:9781285199023

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter1: Introduction To Chemistry

Section: Chapter Questions

Problem 1.77PAE

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