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Which outcome occurs when a molecular sieve made of zeolite adsorbs water vapor?

A)Selective gas separation enhancement
B)Framework amorphization occurs rapidly
C)Increased overall structural rigidity
D)Reduced thermal expansion coefficient

💡 Explanation

Selective gas separation enhancement occurs because water adsorption within zeolite pores via **physisorption** competitively hinders other molecules entering. Therefore, certain gases traverse more easily rather than get blocked, creating separation because adsorption favors water molecules.

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