O ADVANCED MATERIAL Using a rate law The rate of a certain reaction is given by

Question

O ADVANCED MATERIAL Using a rate law The rate of a certain reaction is given by the following rate law: rate = k | H21-INH, Use this information to answer the questions below. What is the reaction order in H2? What is the reaction order in NH3? What is overall reaction order? At a certain concentration of H2 and NH3, the initial rate of reaction is 4.0 x 105 M/s. What would the initial rate of the reaction be if the concentration of H2 were halved? Be sure your answer has the correct number of significant digits. The rate of the reaction is measured to be 0.370 M S when [H1-0.21 M and [NH3]·0.70 M. Calculate the value of the rate constant. Be sure your answer has the correct number of significant digits. k-OM 2 Explanation Check 20 esc

Explanation / Answer

Rate = k ( H)^2 * (NH3)

If the rate of reaction is halved then it will become 1/4

So rate = 1/4 * ( 4.0*10^5) = 1.0*10^5

B. R = k (H2)^2*(NH3)

0.370 = k (0.21)^2*(0.7)

K = 5.873

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