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A chemical engineer is studying the rate of this reaction. 2NH3(g) → N₂(g) + 3H₂(g) - She fills a reaction vessel with NH3 and measures its concentration as the reaction proceeds. Here's a graph of her data: [NH,](M) 0.5- 0- 0 20 40 60 80 100

A chemical engineer is studying the rate of this reaction. 2NH3(g) → N₂(g) + 3H₂(g) - She fills a reaction vessel with NH3 and measures its concentration as the reaction proceeds. Here's a graph of her data: [NH,](M) 0.5- 0- 0 20 40 60 80 100

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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A chemical engineer is studying the rate of this reaction. 2NH3(g) → N₂(g) + 3H₂(g) She fills a reaction vessel with NH3 and measures its concentration as the reaction proceeds. Here's a graph of her data: [NH,](M) 2 1.5 0.5 0. 0 20 40 60 80 100
Transcribed Image Text:A chemical engineer is studying the rate of this reaction. 2NH3(g) → N₂(g) + 3H₂(g) She fills a reaction vessel with NH3 and measures its concentration as the reaction proceeds. Here's a graph of her data: [NH,](M) 2 1.5 0.5 0. 0 20 40 60 80 100
Use this graph to answer the following questions: What is the half life of the reaction? Round your answer to 2 significant digits. Suppose the rate of the reaction is known to be first order in NH3. Calculate the value of the rate constant k. Round your answer to 2 significant digits. Also be sure you include the correct unit symbol. Predict the concentration of NH3 in the engineer's reaction vessel after 160. seconds have passed. Assume no other reaction is important, and continue to assume the rate is first order in NH3. Round your answer to 2 significant digits. 11/2 = 0s S k = 0 [NH,]=[]M x10 X 5
Transcribed Image Text:Use this graph to answer the following questions: What is the half life of the reaction? Round your answer to 2 significant digits. Suppose the rate of the reaction is known to be first order in NH3. Calculate the value of the rate constant k. Round your answer to 2 significant digits. Also be sure you include the correct unit symbol. Predict the concentration of NH3 in the engineer's reaction vessel after 160. seconds have passed. Assume no other reaction is important, and continue to assume the rate is first order in NH3. Round your answer to 2 significant digits. 11/2 = 0s S k = 0 [NH,]=[]M x10 X 5
Expert Solution
Step 1

•Here graph is given for Concentration NH3 V/s time.

•Concentration=>x-axis

•Time=>y-axis

1)Half life of reaction:-

Half life (t1/2):-It is time required for concentration to decrease by half.

•See initial concentration of NH3=> 1.4 M

•Now half of 1.4 is=>1.4/2=>0.7 M

•See 0.7 M on graph and trace time corresponding to 0.7 M.

•Time corresponding 0.7M is 40 sec.

•So time from 1.4 M to 0.7 M is half life and it is 40sec.

•Answer:--Half life of reaction is 4 sec.

 

 

 

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