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Which outcome occurs when a reversible solid-gas reaction reaches equilibrium?

A)Rates are equal, ΔG approaches zero.
B)Reactants fully convert into products.
C)Temperature becomes spatially uniform.
D)Solid reactant mass reaches minimum value.

💡 Explanation

At equilibrium, the rates of forward and reverse reactions are equal, and the Gibbs free energy change approaches zero because the system is at its minimum energy state; therefore, dynamic equilibrium is established, rather than driving complete conversion as in irreversible reactions.

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