For the reaction, 2NOBr(g) $\rightleftharpoons$2NO(g) + Br2(g), the ratio $\frac{K_{p}}{P}$, where P

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For the reaction, 2NOBr(g) $\rightleftharpoons$2NO(g) + Br2(g), the ratio $\frac{K_{p}}{P}$, where P is the total pressure of gases at equilibrium and $P_{Br_{2}} = \frac{P}{9}$at a certain temperature is

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2NOBr $ightleftharpoons$ 2NO + Br2P0 0 0Equilibrium P0 – 2x 2x x = P/9Ptotal = (P0 – 2x) + 2x + x = P0 + x$= P \Rightarrow P_{0} = \frac{8P}{9}$$	herefore K_{p} = \frac{(2x)^{2} 	imes x}{\left( P_{0} - 2x ight)^{2}} = \frac{\left( \frac{2P}{9} ight)^{2} 	imes \frac{P}{9}}{\left( \frac{8P}{9} - \frac{2P}{9} ight)} = \frac{P}{81}$

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