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← ScienceWhich outcome increases when an undercooled metal solidifies?
A)Grain boundary migration decreases rapidly
B)Latent heat release accelerates dramatically✓
C)Dendritic arm spacing shrinks linearly
D)Undercooling duration exceeds equilibrium solidification
💡 Explanation
Latent heat accelerates release because of nucleation and crystal growth. Faster transformations release latent heat more quickly, raising the temperature; therefore the rapid heat release is the principal effect, rather than grain structure or undercooling duration because these manifest after transformation.
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