Consider the following system at equilibrium at 800 K: 2H2(g) + S2(g) 2H2S(g) + 69.3 kcal If the TEMPERATURE on the equilibrium system is suddenly decreased: The reaction must:   A. Run in the forward direction to reestablish equilibrium.     B. Run in the reverse direction to reestablish equilibrium.     C. Remain the same. Already at equilibrium.   The concentration of S2 will:   A. Increase.     B. Decrease.     C. Remain the same.

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