The activity co-efficient of the solute in a dilute solution ?
Correct answer: D. Remains constant
- A. Decreases with the increase of concentration of the solute
- B. Increases with the increase of concentration of the solute
- C. Is unity at infinite dilution
- D. Remains constant
Explanation
In a sufficiently dilute solution, the solute activity coefficient is approximately independent of concentration, so it is treated as constant. It is not generally unity at infinite dilution, since that value applies to an ideal-solution convention, not every real solute.
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