Chemical Kinetics Question 61

Question: Consider a first order decomposition process $ A_3\to \frac{3}{2}A_2 $ A plot of concentration of $ A_3 $ and $ A_2 $ versus time is shown below. At time $ t_{A} $ percentage of reactant decomposed is

Options:

A) 75%

B) 50%

C) 40%

D) 30%

Show Answer

Answer:

Correct Answer: C

Solution:

[c] $ A_3\to \frac{3}{2}A_2 $

$ A-x=\frac{3}{2}x $

$ A-x=\frac{3}{2}x $ or $ x=\frac{2}{5}A=40%,of,A. $ % of A.



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