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← ScienceIn gas chromatography, which effect results from increased column temperature?
A)Decreased analyte-stationary phase interaction✓
B)Increased partition coefficient selectivity
C)Enhanced hydrogen bonding in stationary phase
D)Stronger van der Waals molecular attraction
💡 Explanation
Raising the temperature increases the average kinetic energy of analyte molecules, therefore the decreased analyte-stationary phase interaction occurs because solutes spend less time interacting via *intermolecular forces*, rather than increased retention predicted by adsorption characteristics.
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