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A graph between $1/[A]^2$ vs t is plotted below where [A] is conc of [A] at time t and $[A_o]$ is initial conc and k is the rate constant of a $Rx^n$ $nA\rightarrow$ product. What is the order of the $Rx^n$

 

 

$(a)\;0\qquad(b)\;1\qquad(c)\;2\qquad(d)\;3$

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For $Rx^n$ $nA\rightarrow $product
For order n
$Kt=\large\frac{1}{n-1}\big(\large\frac{1}{([A_o]+x)^{n-1}}-\frac{1}{[A_o]^{n-1}}\big)$
$[A]^{-n+1}=[A]^{-2}$
$n=3$
Hence (d) is the correct answer.
answered Dec 12, 2013 by sreemathi.v
 

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