One mole of pure PCl5 is placed in an evacuated container and maintained at 250°C. The equilibrium i

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One mole of pure PCl5 is placed in an evacuated container and maintained at 250°C. The equilibrium is established at total pressure of 2 atm. What is the partial pressure of chlorine at equilibrium?PCl5(g) $\rightleftharpoons$ PCl3(g) + Cl2(g): KP = 1.6 atm

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PCl5(g) $ightleftharpoons$ PCl3(g) + Cl2(g)1 mole 0 0Equilibrium (1 – x) mole x mole x moleEquilibrium partial pressure (P = 2 atm)$\frac{1 - x}{1 + x} 	imes P$ $\frac{x}{1 + x} 	imes P$ $\frac{x}{1 + x} 	imes P$$K_{p} = \frac{\left( \frac{x}{1 + x}.P ight)\left( \frac{x}{1 + x}.P ight)}{\left( \frac{1 - x}{1 + x}.P ight)} = \frac{x^{2}.P}{1 - x^{2}}$

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