$x A_{(s)} \rightleftharpoons y B_{(g)} + z C_{(g)}$. If $\frac{K_c}{K_p} = (RT)^{-2}$,then which is correct?

  • A
    $y + z - x = -2$
  • B
    $y + z - x = 2$
  • C
    $y + z = -2$
  • D
    $y + z = 2$

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