Lanthanum(III) phosphate crystallizes as a hemihydrate, LAPO4 · H20. When it is heated, it loses water to give anhydrous lanthanum(III) phosphate: 2(LAPO4 · H2O(s)) → 2 LaPO4 (s) + H20(g) This reaction is first order in the chemical amount of LAPO, · H2O. The rate constant varies with tempera- ture as follows: Temperature (°C) k (s-1) 205 2.3 x 10-4 219 3.69 x 10-4 246 7.75 x 10-4 260 12.3 x 10-4 Compute the activation energy of this reaction.

Lanthanum(III) phosphate crystallizes as a hemihydrate, LAPO4 · H20. When it is heated, it loses water to give anhydrous lanthanum(III) phosphate: 2(LAPO4 · H2O(s)) → 2 LaPO4 (s) + H20(g) This reaction is first order in the chemical amount of LAPO, · H2O. The rate constant varies with tempera- ture as follows: Temperature (°C) k (s-1) 205 2.3 x 10-4 219 3.69 x 10-4 246 7.75 x 10-4 260 12.3 x 10-4 Compute the activation energy of this reaction.

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter14: Chemical Kinetics: The Rates Of Chemical Reactions

Section: Chapter Questions

Problem 19PS: Hydrogen peroxide, H2O2(aq), decomposes to H2O() and O2(g) in a reaction that is first-order in H2O2...

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