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Exam
Olympiad workbook
Subject
NSEC
Chapter
Chemical Kinetics

Olympiad workbook · NSEC · Chemical Kinetics

Urea, CO(NH_2)_2 , decomposes at 90^ ^ ^ C as CO(NH_2)_2(aq) arrow...

Urea, CO(NH2)2\mathrm{CO}\left(\mathrm{NH}_2\right)_2, decomposes at 90∘C90^{{}^{{}^{\circ}}} \mathrm{C} as CO(NH2)2(aq)→NH4+(aq)+OCN−(aq)\mathrm{CO}\left(\mathrm{NH}_2\right)_2(\mathrm{aq}) \rightarrow \mathrm{NH}_4{ }^{+}(\mathrm{aq})+\mathrm{OCN}^{-}(\mathrm{aq}) Experimental data obtained for the reaction is given in the following plot Urea, CO(NH_2)_2 , decomposes at 90^ ^ ^ C as CO(NH_2)_2(aq) arrow NH_4 ^ + (aq)+OCN^ - (aq) Experimental data obtained
From the graph it can be inferred that

Options

  1. AAverage rate of the reaction is the same for successive time intervals of 10 h
  2. Bunit of rate constant of the reaction is \mathrmh−1\mathrmh^{-1}
  3. Crate constant of the reaction is the lowest at 30 h
  4. Dthe reaction is of zero order

Correct answer

B. unit of rate constant of the reaction is \mathrmh−1\mathrmh^{-1}

Step-by-step solution

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