Question

O ADVANCED MATERIAL Deducing a rate law from initial reaction rate data Some measurements of the initial rate of a certain reaction are given in the table below. N] H, 0.731 M 1.39 M 0.731 M 0.228 M 2.22 M 1.39 M initial rate of reaction 2.00 10 m/s 5.38 x 10 m/s 1 .84 x 10° M/s Use this information to write a rate law for this reaction, and calculate the value of the rate constant k. Round your value for the rate constant to 3 significant digits. Also be sure your answer has the correct unit symbol. rate - * k - x 5 ? Explanation Check

Answer 1

Dear student,

from the given experimental values we have data like one quantity is changing and another is not changing what we have to do is see how many times concentration is changing and in parallel how many times rate of reaction is changing and knowing the power of change to classify first order or second order or zeroth. I have done the question.please feel free to comment here if you are not clear with something or need further clarification.

Given concentrations [Na ] [H₂] rate of reaction 2000xlos mis 0.731 M 01731m 139 m 0.228m 5-38x 103 mis 2:22M 39 m from 40 N concentration is not changing rate of reaction Sexlo ) @ [m] 0.228m [H2] 139 m 2.00x los miri trat e ofrto H, is 6 times increased 1.39 increased by 3 timg. 0.228 = 0.09649 .: (6.09649) = (3717472) 40 in conc. is not changing Rate of reaction 2.0.xlos misl 0.731m [Na] 1184x108 mis. 2.22 M

9.2.2 = 3.03694 (3-03694)= 92 Reater lain REIN [no I rate law, bak[a] ² [H]² F= Rate constant [~23² [H₂J² from @ (61131 091? (0.3992 (m²) THE 161938Y K- 2,00,000 03248888) K= 193716.066 205 K= 1.94x10