question_answer

The suitable expression for the equilibrium constant of the reaction \[2N{{O}_{(g)}}+C{{l}_{2(g)}}\] ⇌ \[2NOC{{l}_{(g)}}\]  is [CPMT 1983, 87]

A)                 \[{{K}_{c}}=\frac{[2NOCl]}{[2NO]\,[C{{l}_{2}}]}\]              

B)                 \[{{K}_{c}}=\frac{{{[NOCl]}^{2}}}{{{[NO]}^{2}}[C{{l}_{2}}]}\] 

C)                 \[{{K}_{c}}=\frac{{{[NOCl]}^{2}}}{[NO]{{[C{{l}_{2}}]}^{2}}}\]        

D)                 \[{{K}_{c}}=\frac{{{[NOCl]}^{2}}}{{{[NO]}^{2}}{{[C{{l}_{2}}]}^{2}}}\]