The gas phase decomposition of phosphine at 120 °C PH3(g)→1/4 P¾(g) + 3/2 H2(g) is first order in PH3. During one experiment it was found that when the initial concentration of PH3 was 2.64×10² M, the concentration of PH3 dropped to 3.72×103 M after 71 s had passed. Based on this experiment, the rate constant for the reaction is

Chemistry & Chemical Reactivity
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Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
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Chapter14: Chemical Kinetics: The Rates Of Chemical Reactions
Section: Chapter Questions
Problem 21PS: At 573 K, gaseous NO2(g) decomposes, forming NO(g) and O2(g). If a vessel containing NO2(g) has an...
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The gas phase decomposition of phosphine at 120 °C
PH3(g)1/4 P4(g) + 3/2 H2(g)
is first order in PH3.
During one experiment it was found that when the initial concentration of PH3 was 2.64x10² M, the concentration of PH3 dropped to 3.72x103 M after 71 s had passed.
Based on this experiment, the rate constant for the reaction is
Transcribed Image Text:The gas phase decomposition of phosphine at 120 °C PH3(g)1/4 P4(g) + 3/2 H2(g) is first order in PH3. During one experiment it was found that when the initial concentration of PH3 was 2.64x10² M, the concentration of PH3 dropped to 3.72x103 M after 71 s had passed. Based on this experiment, the rate constant for the reaction is
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