For a gas dissolving in a liquid at a given partial pressure, a higher value of the Henry's law constant KH indicates:
Ano effect on solubility
Blower solubility of the gas
Ccomplete insolubility of the gas
Dhigher solubility of the gas
Answer & Solution
Correct answer: B. lower solubility of the gas
1. Henry's law: $p = K_H x$, so $x = p / K_H$.
2. For a fixed partial pressure p, the mole fraction x (a measure of solubility) is inversely proportional to KH.
3. Therefore a higher KH means a lower x, i.e. lower solubility of the gas.
_Source: NCERT Class 12 Chemistry Ch 1 "Solutions", p.6_
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