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← ScienceWhich outcome occurs when rapid heating causes an amorphous solid to undergo glass transition within a microfluidic device?
A)Increased brittleness halts fluid flow
B)Decreased viscosity enables uniform mixing✓
C)Crystallization obscures optical analysis
D)Decomposition releases interfering gas
💡 Explanation
Increased thermal energy causes decreased van der Waals radius, weakening intermolecular cohesion; this is plasticization. As viscosity decreases, fluid integrates the device because of efficient mixture, rather than crystal phase transitions at elevated temperatures; therefore, increased analysis occurs.
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