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Solutions — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistrySolutions1 Mark
MCQ
At equilibrium, the rate of dissolution of a solid solute in a volatile liquid solvent is:
  • A
    Less than the rate of crystallisation
  • B
    Greater than the rate of crystallisation
  • C
    Equal to the rate of crytallisation
  • D
    Zero
✓

Answer

  1. Equal to the rate of crytallisation

Explanation:

Crystallization is the process of the formation of solid crystals precipitating from a solution.

In an unsaturated solution, the rate of dissolution of a solute in a volatile liquid solvent is greater than the rate of crystallization. 

In a supersaturated solution, the rate of dissolution of a solute in a volatile liquid solvent is less than the rate of crystallization.

At equilibrium, the rate of dissolution of a solute in a volatile liquid solvent is equal to the rate of crystallization.

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