Question: Phosphorus pentachloride, PCl5, decomposes when heated. If the initial concentration of PCl5 is 1.00 mol/L, what is the equilibrium composition of the gaseous mixture at

Phosphorus pentachloride, PCl5, decomposes when heated.

If the initial concentration of PCl5 is 1.00 mol/L, what is the equilibrium composition of
the gaseous mixture at 160oC? The equilibrium constant Kc at 160oC is 0.0211.

PC15(g) -PC13(g) + Cl2(g)

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