Consider the gas-phase equilibrium N₂O₄(g) ⇌ 2 NO₂(g) At 298 K, Kc = 4.0

CHEMISTRY · Subjective · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)

Problem

Consider the gas-phase equilibrium N₂O₄(g) ⇌ 2 NO₂(g) At 298 K, Kc = 4.0. A sealed 1.0 L flask at this temperature contains 10 N₂O₄ molecules and 12 NO₂ molecules. Will the reaction proceed in the forward direction (toward NO₂) or in the reverse direction (toward N₂O₄) as the system moves toward equilibrium? Answer with “forward” or “reverse.”

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