CHEM 102 Optional Assignment: A sample of PCIs was placed in a vessel with an original concentration of 0.40 M. After the PCI, has decomposed and equilibrium has been established, 25% of the PCls remains. PCI5(g) PC13(g) + Cl₂(g) What are the equilibrium concentrations of PCI5, PCI3, and Cl₂? Write the equilibrium constant expression of the decomposition reaction Calculate the equilibrium constant for decomposition reaction

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