Which of the following is a necessary condition for the direct application of Henry's law?
AThe gas must react with the liquid to form a stable product
BThe solution must be highly concentrated in dissolved gas
CThe gas should not react chemically with the liquid
DThe liquid must be volatile and the gas must be non-ideal
Answer & Solution
Correct answer: C. The gas should not react chemically with the liquid
Henry's law is applied to dilute solutions of gases in liquids when the dissolved gas does not chemically react with the solvent. If reaction occurs, the physical equilibrium assumed in Henry's law is disturbed.
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