Phosphine, PH3, undergoes a first-order decomposition into phosphorus, P4, and hydrogen at 680 °C. If the initial concentration of phosphine is 1.1 × 106 g L-1, and after 180 s the concentration has dropped to 0.30 × 106 g L¹, what is the rate constant for this process in s¹? k = i 5-1

Phosphine, PH3, undergoes a first-order decomposition into phosphorus, P4, and hydrogen at 680 °C. If the initial concentration of phosphine is 1.1 × 106 g L-1, and after 180 s the concentration has dropped to 0.30 × 106 g L¹, what is the rate constant for this process in s¹? k = i 5-1

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

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 16PS: The decomposition of N2O5 in CCl4 is a first-order reaction. If 2.56 mg of N2O5 is present initially...

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Question

Phosphine, PH3, undergoes a first-order decomposition into phosphorus, P4, and hydrogen at 680 °C. If the initial concentration
of phosphine is 1.1 × 106 g L-1, and after 180 s the concentration has dropped to 0.30 × 106 g L¹, what is the rate constant for
this process in s¹?
k = i
5-1

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