Three gases A, B, and C have Henry's Law constants () in the order . What is the correct order of th — Solutions and Colligative Properties Chemistry Question
Question
Three gases A, B, and C have Henry's Law constants ($K_H$) in the order $K_H(A) > K_H(C) > K_H(B)$. What is the correct order of their solubility in a liquid at a given constant temperature and pressure?
Answer: B
💡 Solution & Explanation
From Henry's Law $P = K_H \times \chi$, we see that $\chi = \frac{P}{K_H}$. At constant pressure, the mole fraction (solubility) is inversely proportional to $K_H$. Thus, the lowest $K_H$ yields the highest solubility, making the order B > C > A.
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