For the reaction $2NO_{(2g)} \rightleftharpoons 2NO_{(g)}+O_{2(g)} \qquad K_c=1.8 \times 10^{-6}$ at $184^{\circ} c R=0.0831\;KJ/mol\;K$ When $K_p$ and $K_c$ are compared at $184^{\circ}$ it is found that :

Question

$\begin{array}{1 1} \text{(a) whether K_p is greater than less or equal to K_c depends upon the total gas pressure } \\(b)\;K_p = K_c \\(c)\;K_p < K_c \\ (d)\;K_p > K_c \end{array}$