Find the average rate of formation of $NO_{2_{(g)}}$ in the following reaction:
$2 N_2O_{5_{(g)}} \rightarrow 4 NO_{2_{(g)}} + O_{2_{(g)}}$
Given that $\left[ -\frac{\Delta [N_2O_5]}{\Delta t} \right] = x \ mol \ dm^{-3} \ s^{-1}$

  • A
    $x \ mol \ dm^{-3} \ s^{-1}$
  • B
    $\frac{x}{2} \ mol \ dm^{-3} \ s^{-1}$
  • C
    $2 x \ mol \ dm^{-3} \ s^{-1}$
  • D
    $4 x \ mol \ dm^{-3} \ s^{-1}$

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