For the reaction $2A \rightarrow 3C + D$, the rate of reaction is represented by:

  • A
    $-\frac{d[A]}{dt} = -\frac{d[D]}{dt}$
  • B
    $-\frac{d[C]}{dt} = -2\frac{d[A]}{dt}$
  • C
    $-\frac{d[A]}{dt} = \frac{d[D]}{dt}$
  • D
    $-\frac{1}{2} \frac{d[A]}{dt} = +\frac{1}{3} \frac{d[C]}{dt}$

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For the reaction $2A + B \to A_2B$,the rate of reaction with respect to $A$ is $3.9 \times 10^{-9} \ mol \ L^{-1} \ s^{-1}$. Calculate the rate of consumption of $B$ and the rate of formation of $A_2B$.

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