In a system: A(s) ⇌ 2B(g) + 3C(g), if the concentration of C at equilibrium is increased by a factor — Chemical Equilibrium Chemistry Question

💡 Solution & Explanation

The equilibrium constant is Kc = [B]²[C]³. Let initial state be [B]₁²[C]₁³ = Kc. If [C]₂ = 2[C]₁, then [B]₂²(2[C]₁)³ = Kc => [B]₂²(8[C]₁³) = [B]₁²[C]₁³. This simplifies to 8[B]₂² = [B]₁², meaning [B]₂ = [B]₁ / √8 = [B]₁ / (2√2). Therefore, correct answer is C.