What are the equilibrium concentrations for all substances

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Problem- A mixture consisting of 1.000 mol H2O(g) and 1.000 mol CO(g) is placed in a 10.00-L reaction vessel at 800. K. At equilibrium, 0.665 mol CO2(g) is present as a result of the reaction CO(g) + H2O(g) ---> CO2(g) + H2(g). What are (a) the equilibrium concentrations for all substances and (b) the value of Kc at 800 K?

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