Equilibrium Constant Calculation for Gas Reaction

Very Hard General Chemistry Chemical Equilibrium

Consider the reversible reaction occurring in a closed system:

A(g) + B(g) <=> 2C(g)

The reaction begins with 1.0 mole of A and 1.0 mole of B placed in a 2.0 L container. After reaching equilibrium, the concentration of C is found to be 0.25 M. Assuming ideal gas behavior, which of the following statements about the equilibrium state is TRUE?

The equilibrium constant, Kc, is greater than 1.

The concentration of A at equilibrium is 0.50 M.

The reaction will not proceed in the forward direction at equilibrium.

The concentration of B at equilibrium is greater than that of A.

Hint

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