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Which outcome occurs when highly concentrated ionic solutions experience evaporative drying?

A)Supersaturation exceeds nucleation energy barrier
B)Solubility increases exponentially beyond saturation
C)Ionic mobility remains perfectly constant
D)Viscosity decreases; diffusion becomes homogeneous

💡 Explanation

Crystal formation results because, as solvent evaporates, the ionic concentration rises to a point of supersaturation. Above the *nucleation energy barrier*, crystal growth becomes thermodynamically favourable, therefore crystallization occurs rather than maintaining a stable solution.

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