From the equation; there are three particles in solution.
What is freezing point?
The term freezing point is the temperature at which a liquid substance is converted to solid. We know that this is colligative property thus it depends on the number of particles in solution.
The dissolution of K₂S gives us;
K₂S(s) ----> 2K^+(aq) + S^2-(aq)
This implies that there are three particles in solution.
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