Question

The equilibrium constant K, for the reaction H2(g) + CO2,(g) = H,O(g) + CO(g) is 4.0 at 1660°C. Initially 0.80 mole H2, and 0.80 mole CO2, are injected into a 5.0 liter flask. What is the equilibrium concentration
of CO2(g) :-
(1) 0.533 M
(2) 0.0534 M 1
(3) 5.34 M
(4) None of these
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Answer 1

The answer is 0.0533

A little approximation is also valid