Chemistry, 26.02.2020 05:43, Jadaflournoy5
Hydrogen iodide decomposes at 800 K via a second-order process to produce hydrogen and iodine according to the following chemical equation. 2 HI(g) ---> H2 (g) + I2 g) At 800 K it takes 142 seconds for the initial concentration of HI to decrease from 6.75 x 10^-2 M to 3.50 x 10^-2 M. What is the rate constant for the reaction at this temperature?
A) 5.12 x 10^-4 M^-1 s^-1
B) 9.69 x 10^-2 M^-1 s^-1
C) 10.3 M^-1 s^-1
D) 1.95 x 10^3 M^-1 s^-1
Answers: 1
![k=\frac{1}{t}\left (\frac{1}{[A]}-\frac{1}{[A]_o}\right)](/tpl/images/0524/6600/5ea71.png)
![[A]_o](/tpl/images/0524/6600/9caf5.png)
= Initial concentration = 
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Hydrogen iodide decomposes at 800 K via a second-order process to produce hydrogen and iodine accord...
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