For the equilibrium below at 400 K, Kc = 7.0. Br₂(g) + Cl₂(g) → 2BrCl(g) If (initially) 0.20 mol of Br₂ and 0.20 mol Cl₂ are introduced into a 1.0 L container at 400. K, what will be the equilibrium concentration of BrCl? Assume the initial product concentration is zero.