A chemistry graduate student is studying the rate of this reaction:
2NH3 (g) → N2 (g) + 3H2 (g)
He fills a reaction vessel with NH3 and measures its concentration as the reaction proceeds:
time (seconds) | [NH3]
0 | 0.400 M
10. | 0.0751 M
20. | 0.0414 M
30. | 0.0286 M
40. | 0.0218 M
Use this data to answer the following questions.
Write the rate law for this reaction. rate = k
Calculate the value of the rate constant k. k =
Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol.