The pseudofirst-order rate constant for the decomposition of urea, CO(NH2)(aq) + 2 H2O(I)→ 2 NH4+(aq) + CO32-(aq). is 1.2 x 10-7 s- 1 at 60 °C and 4.6 x 10-7 s-1 at 70 oc. Estimate (a) the activation Gibbs energy and (b) the entropy of activa tion of the reaction.

The pseudofirst-order rate constant for the decomposition of urea, CO(NH2)(aq) + 2 H2O(I)→ 2 NH4+(aq) + CO32-(aq). is 1.2 x 10-7 s- 1 at 60 °C and 4.6 x 10-7 s-1 at 70 oc. Estimate (a) the activation Gibbs energy and (b) the entropy of activa tion of the reaction.

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter23: Potentiometry

Section: Chapter Questions

Problem 23.11QAP

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Question

The pseudofirst-order rate constant for the decomposition of urea, CO(NH₂)(aq) + 2 H₂O(I)→ 2 NH₄⁺(aq) + CO₃^2-(aq). is 1.2 x 10^-7 s^{- 1} at 60 °C and 4.6 x 10-7 s-1 at 70 oc. Estimate (a) the activation Gibbs energy and (b) the entropy of activa tion of the reaction.

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