For the reactions $N_{2(g)} + O_{2(g)} \rightleftharpoons 2NO_{(g)}$ and $\frac{1}{2}N_{2(g)} + \frac{1}{2}O_{2(g)} \rightleftharpoons NO_{(g)}$,if the equilibrium constants are $K_1$ and $K_2$ respectively,then their relationship is:

  • A
    $K_1 = K_2$
  • B
    $K_2 = \sqrt{K_1}$
  • C
    $K_1 = 2K_2$
  • D
    $K_1 = \frac{1}{2}K_2$

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