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Which outcome occurs when supercooled liquid reaches its limit of metastability?

A)Exothermic crystallization via nucleation
B)Endothermic melting via surface defects
C)Isothermal expansion causing volume increase
D)Adiabatic compression inducing vitrification

💡 Explanation

When a supercooled liquid reaches its metastability limit, rapid crystallization occurs by nucleation because the energy barrier prevents immediate solidification until a critical size is reached, releasing heat upon crystal formation. Therefore, exothermic crystallization happens, rather than melting, expansion, or vitrification which would require reverse processes and energy changes.

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