For the reaction $2NO_{2(g)} \rightleftharpoons 2NO_{(g)} + O_{2(g)}$,$K_c = 1.8 \times 10^{-6}$ at $184 \, ^\circ C$. Given $R = 0.0831 \, kJ/(mol \cdot K)$,when $K_p$ and $K_c$ are compared at $184 \, ^\circ C$,it is found that:

• A
  $K_p$ is greater than $K_c$
• B
  $K_p$ is less than $K_c$
• C
  $K_p = K_c$
• D
  Whether $K_p$ is greater than,less than or equal to $K_c$ depends upon the total gas pressure