Solved: A compound XY2(s) decomposes to form X(g) and Y(g)

Chapter 14, Problem 14.127

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A compound XY2(s) decomposes to form X(g) and Y(g) according to the following chemical equation: XY2(s) X(g) 1 2Y(g) A 0.01-mol sample of XY2(s) was placed in a 1-L vessel, which was sealed and heated to 500C. The reaction was allowed to reach equilibrium, at which point some XY2(s) remained in the vessel. The experiment was repeated, this time using a 2-L vessel, and again some XY2(s) remained in the vessel after equilibrium was established. This process was repeated, each time doubling the volume of the vessel, until finally a 16-L vessel was used, at which point heating the vessel and its contents to 500C resulted in decomposition of the entire 0.01 mole of XY2(s) according to the above reaction. Estimate Kc and KP for the reaction at 500C