ધારો કે સંતુલને $P _{ CO _2}= x \quad \therefore P _{ N _3}=2 x$
$P _{ NH _3}+ P _{ CO _2}= x +2 x =3 \quad \therefore x =1$
$\therefore P _{ NH _3}=2 x =2 \times 1=2 . \quad P _{ CO _2}= x =1$
$K _{ P }= P _{ NH _3}^2 \times P _{ CO _2}=(2)^2 \times 1=4$
(અહીં : $SrCO_{3(s)} \rightleftharpoons SrO_{(s)}+ CO_{2(g)} \,, K_p=1.6\,atm$)