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: INH3], M seconds 4.73×103 999 2.37x103 1.50×103 1.19×10-3 1.75×103 9.45x10-3 Hint: It is not necessary to graph these data. (1) The observed half life for this reaction when the starting concentration is 9.45×10³ M is 00.0142 concentration is 4.73×10³ M is [ and when the starting (2) The average rate of disappearance of NH3 from t = 0 s to t= 999 s is [ |Ms!. (3) The average rate of disappearance of NH3 fromt=999 s to t= 1.50x10³ s i [ |Ms'. (4) Based on these data, the rate constant for thi v zero rder reaction is Ms!. first second

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Chapter1: Chemical Foundations
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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
9.45x103
4.73x10-3
2.37x10-3
1.50x103
1.19×103
1.75x103
seconds
999
Hint: It is not necessary to graph these data.
(1)
The observed half life for this reaction when the starting concentration is 9.45x103 M is 00.0142
s and when the starting
concentration is 4.73×103 M is
(2)
The average rate of disappearance of NH33 from t= 0 s to t = 999 s is|
|Ms!.
(3)
The average rate of disappearance of NH33 from t= 999 s to t=1.50×10 s is|
|Ms!.
(4)
Based on these data, the rate constant for thi v zero
rder reaction is
Ms.
first
second
Transcribed Image Text: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 9.45x103 4.73x10-3 2.37x10-3 1.50x103 1.19×103 1.75x103 seconds 999 Hint: It is not necessary to graph these data. (1) The observed half life for this reaction when the starting concentration is 9.45x103 M is 00.0142 s and when the starting concentration is 4.73×103 M is (2) The average rate of disappearance of NH33 from t= 0 s to t = 999 s is| |Ms!. (3) The average rate of disappearance of NH33 from t= 999 s to t=1.50×10 s is| |Ms!. (4) Based on these data, the rate constant for thi v zero rder reaction is Ms. first second
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