Hypothetical elements X(g) and Y(g) are introduced into a container and allowed to react according to the reaction: X(g) Y(g) ±£ XY(g). The container depicts the reaction mixture after equilibrium has been attained.

Next, the volume of the container is doubled by rapidly moving the plunger upward.
a. How will this volume change affect the equilibrium constant of the reaction?
b. Immediately after the volume change, how does Q compare to the equilibrium constant and which way will the reaction proceed?
c. Immediately after the volume change, are the values of ˆ†G and ˆ†S positive, negative, or zero for the forward reaction?

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