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← ScienceWhich outcome occurs when ethylene glycol in a closed cooling system reaches ambient freezing point?
A)System experiences density inversion stratification✓
B)Coolant pressure increases dramatically
C)Heat transfer becomes more efficient
D)Corrosion rates drastically decrease
💡 Explanation
When EG freezes, density inversion stratification occurs because the solid phase forms layers based on concentration leading to uneven heat distribution rather than uniform phase transition or a simple volume change. Therefore, density variance, rather than simple expansion/contraction of the fixed system volume, limits further convection.
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