The hermal decomposition of phosphine (PH3) into phosphorus and molecular hydrogen is a first-order reaction: 4PH3(g) → P4(g) + 6H₂(g) The half-life of the reaction is 35.0 s at 680°C. Calculate (a) the first-order rate constant for the reaction, and (b) the time required for 95 percent of the phosphine to decompose.

The hermal decomposition of phosphine (PH3) into phosphorus and molecular hydrogen is a first-order reaction: 4PH3(g) → P4(g) + 6H₂(g) The half-life of the reaction is 35.0 s at 680°C. Calculate (a) the first-order rate constant for the reaction, and (b) the time required for 95 percent of the phosphine to decompose.

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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