The following mechanism is proposed for the reaction: H2 (g) + I2 (g) → 2HI (g) (1) L2 → 21 ki (2) 21 → I2 k2 (3) H2 + 21 → 2HI k3 (a) Derive an expression of using steady-state approximation. dt (b) Under what condition the rate derived in (a) is first-order in [H2]? Which step is slow in this case? (c) What will be the order of reaction with respect to [H2] in (a) when [H2]>>[lk]? Which step will be fast in this case and which step will be rate-determining? (d) Suppose the reaction involve equilibrium as follows h2 21 H2 + 21 → 2HI k3 d[HI] What will be the expression of dt (e) Is the expression derived in (d) similar to that in (b) or (c)? Justify.

The following mechanism is proposed for the reaction: H2 (g) + I2 (g) → 2HI (g) (1) L2 → 21 ki (2) 21 → I2 k2 (3) H2 + 21 → 2HI k3 (a) Derive an expression of using steady-state approximation. dt (b) Under what condition the rate derived in (a) is first-order in [H2]? Which step is slow in this case? (c) What will be the order of reaction with respect to [H2] in (a) when [H2]>>[lk]? Which step will be fast in this case and which step will be rate-determining? (d) Suppose the reaction involve equilibrium as follows h2 21 H2 + 21 → 2HI k3 d[HI] What will be the expression of dt (e) Is the expression derived in (d) similar to that in (b) or (c)? Justify.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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