Question

Raoult’s law becomes a special case of Henry’s law when

• A. KH = p₁^∘
• B. KH > p₁^∘
• C. KH < p₁^∘
• D. KH ≥ p₁^∘

Hint:

Raoult’s law applies to ideal solutions where solute–solvent interactions are similar.

Answer 1

The Correct Option is A

Step 1: Henry’s law: p = KH x Step 2: Raoult’s law: p = p^∘ x Step 3: When Henry’s constant equals vapour pressure of pure component: KH = p^∘ Then Henry’s law reduces to Raoult’s law.