Chemical equilibrium, Kc/Kp, Le Chatelier's principle, ionic equilibria, pH, buffers, solubility product.
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Q1 · Equilibrium · MEDIUM
For the reaction N₂(g) + 3H₂(g) ⇌ 2NH₃(g), Kp = 1.64 × 10⁻⁴ at 673 K. What is the value of Kc at this temperature? (R = 0.0821 L·atm/(mol·K))
Q2 · Equilibrium · HARD
A gaseous equilibrium 2X(g) + Y(g) ⇌ 2Z(g) has Kp = 0.25 at 400 K. If initially 3.0 mol of X and 1.5 mol of Y are placed in a 5.0 L container and the system reaches equilibrium, which of the following statements is necessarily true?