A chemistry graduate student 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: time (seconds) 0 1.0 2.0 [NH3] 4.0 0.300M 0.206M 0.141 M 3.0 0.0967 M 0.0663 M Use this data to answer the following questions. Write the rate law for this reaction. Calculate the value of the rate constant k. Round your answer to 2 significant digits. Also be sure your answer has the correct unit symbol. rate 11 0 ☐x10 ロ･ロ X S

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