MCQ
The surface tension of a liquid at its boiling point
- ✓Becomes zero
- BBecomes infinity
- Cis equal to the value at room temperature
- Dis half to the value at the room temperature
✓
Answer
Correct option: A.
Becomes zero
a
(a) As the temperature increases, surface tension decreases. At the boiling point, every molecule of a liquid are in motion from bottom to surface, and due to rise in temperature, molecules lose the adhesion and hence, surface tension becomes zero.
(a) As the temperature increases, surface tension decreases. At the boiling point, every molecule of a liquid are in motion from bottom to surface, and due to rise in temperature, molecules lose the adhesion and hence, surface tension becomes zero.
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