Henry's law states that the solubility of a gas in a liquid is:
AInversely proportional to the partial pressure of the gas
BIndependent of the partial pressure of the gas
CProportional to the square of the partial pressure
DDirectly proportional to the partial pressure of the gas over the solution
Answer & Solution
Correct answer: D. Directly proportional to the partial pressure of the gas over the solution
Henry's law: $S = K_H P$, so the solubility S of a gas in a liquid is directly proportional to its partial pressure over the solution. $K_H$ is the Henry's law constant with units mol L⁻¹ bar⁻¹.
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