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← ScienceWhich risk significantly increases when exceeding the working temperature of a molecular sieve?
A)Structural collapse of crystalline framework.
B)Decreased adsorption capacity over time.✓
C)Exothermic reaction from molecular decomposition.
D)Phase transition into amorphous solid.
💡 Explanation
Exceeding the rated temperature causes decreased adsorption capacity because it enhances the kinetic energy that breaks van der Waals attractive forces via induced dipole interactions; therefore, weaker adsorption occurs, rather than framework collapse at reasonable tolerances.
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