The thermal decomposition of PH3 is a first order process: 4 PH3(g) P4(g) + 6 H2(g) If the value for the rate constant, k equals 2.00 x 10/sec, how long (sec) would it takes for 85% of the PH3 to decompose? Express the answer to 3 sig. figs. In[A]t = -kt + ln[A]o sec

The thermal decomposition of PH3 is a first order process: 4 PH3(g) P4(g) + 6 H2(g) If the value for the rate constant, k equals 2.00 x 10/sec, how long (sec) would it takes for 85% of the PH3 to decompose? Express the answer to 3 sig. figs. In[A]t = -kt + ln[A]o sec

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter30: Kinetic Methods Of Analysis

Section: Chapter Questions

Problem 30.7QAP

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Question

The thermal decomposition of PH3 is a first order process: 4 PH3(g)
P4(g) + 6 H2(g)
If the value for the rate constant, k equals 2.00 x 10/sec, how long (sec) would it takes for 85% of the PH3 to decompose?
Express the answer to 3 sig. figs.
In[A]t = -kt + ln[A]o
sec

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