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← ScienceWhich outcome occurs when a molecular sieve exceeds capacity?
A)Breakthrough of unwanted chemical species✓
B)Increased selectivity for target molecules
C)Regeneration efficiency enhancement
D)Sorbent structural integrity improves
💡 Explanation
Molecular sieves rely on size-exclusion for separation, therefore when adsorption capacity is reached, breakthrough occurs because the driving force for selective capture reverses rather than saturation leading to improved selectivity.
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