As the temperature is raised, the surface tension of a liquid:
AIncreases
BDoubles
CStays same
DDecreases
Answer & Solution
Correct answer: D. Decreases
1. Higher temperature raises the kinetic energy of the molecules.
2. The effectiveness of intermolecular attraction then decreases.
3. So surface tension decreases as the temperature is raised.
_Source: NCERT Class 11 Chemistry, Ch 5 'States of Matter'_
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