Chemical Kinetics - Result Question 8

####8. For the reaction, $2 A+B \rightarrow C$, the values of initial rate at different reactant concentrations are given in the table below. The rate law for the reaction is

(2019 Main, 8 April I)

$[\boldsymbol{A}]\left(mol L^{-1}\right)$ $[\boldsymbol{B}]\left(mol L^{-1}\right)$ Initial rate
$\left(mol L^{-1} s^{-1}\right)$
0.05 0.05 0.045
0.10 0.05 0.090
0.20 0.10 0.72

(a) rate $=k[A][B]^{2}$

(b) rate $=k[A]^{2}[B]^{2}$

(c) rate $=k[A][B]$

(d) rate $=k[A]^{2}[B]$

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Answer:

Correct Answer: 8. $T=\infty$

Solution:

  1. Let the rate equation be $k[A]^{x}[B]^{y}$

From Ist values,

$$



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