GKFix MCQ Question

What is the correct expression for the lowering of vapor pressure (Δp₁)?

• A. Δp₁ = x₁ p₁⁰
• B. Δp₁ = x₂ p₁⁰
• C. Δp₁ = (x₁ + x₂) p₁⁰
• D. Δp₁ = x₂ / p₁⁰