Which one of the following statements about surface tension is correct ?
- A. It increases when temperature increases
- B. It decreases when temperature increases ✓
- C. It will remain same with increase or decrease of temperature
- D. It will always decrease with increase or decrease of temperature
Correct Answer: B. It decreases when temperature increases
Explanation
Surface tension of a liquid decreases with an increase in temperature due to the increased kinetic energy of molecules, which disrupts the intermolecular forces.
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