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Henry's law states that, at a constant temperature, the partial pressure (p) of a gas above a solution is:
ADirectly proportional to its mole fraction (x) in solution: p = K_H × x
BIndependent of its mole fraction in solution
CProportional to the square of its mole fraction
DInversely proportional to its mole fraction in solution
Answer & Solution
Correct answer: A. Directly proportional to its mole fraction (x) in solution: p = K_H × x
Henry's law: **p = K_H × x**. Higher K_H means lower solubility at a given pressure.
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