Correct Answer - D
`{:(2NOBr(g)hArr,2NO(g)+,Br(g)),(p-((2p)/(9)+(p)/(9)),(2p)/(9),(p)/(9)),(=(6p)/(9),,):}`
and `K_(p) = ((p_(NO))^(2)xx(p_(Br_(2))))/((p_(NOBr))^(2)) =(((2p)/(9))^(2)xx((p)/(9)))/(((6p)/(9))^(2)) =(p)/(81)`
`:. (K_(p))/(p) = (1)/(81)`