Nitric oxide reacts with $H_2$ according to the reaction:
$2 NO_{(g)} + 2 H_{2(g)} \rightarrow N_{2(g)} + 2 H_{2}O_{(g)}$
Identify the correct relationship for the rate of consumption of reactants and the rate of formation of products.

  • A
    $-\frac{1}{2} \frac{d[NO]}{dt} = -\frac{1}{2} \frac{d[H_2]}{dt} = \frac{d[N_2]}{dt} = \frac{1}{2} \frac{d[H_2O]}{dt}$
  • B
    $\frac{d[N_2]}{dt} = -\frac{1}{2} \frac{d[H_2]}{dt}$
  • C
    $\frac{d[H_2O]}{dt} = \frac{d[N_2]}{dt}$
  • D
    $\frac{d[H_2O]}{dt} = \frac{1}{2} \frac{d[N_2]}{dt}$

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