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How does the surface tension of a liquid...

How does the surface tension of a liquid vary with increase in temperature ?

A

Remains same

B

Decreases

C

Increases

D

No regular pattern is followed

Text Solution

Verified by Experts

The correct Answer is:
B
The surface tension of liquids generally decreases with increase of temperature and becomes zero at the critical temperature. The decrease in surface tension with increase of temperature is obviously due to the fact that with increase of temperature, the kinetic energy of the molecules increases and therefore, the intermolecular attraction decreases.
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