When the temperature of a liquid is increased i... - JAMB Physics 2019 Question
When the temperature of a liquid is increased, its surface tension
A
increases
B
decreases
C
remain constant
D
increases then decreases
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Correct Option: B
In general, surface tension decreases when the temperature increases because cohesive forces decrease with an increase of molecular thermal activity. The influence of the surrounding environment is due to the adhesive action of liquid molecules that they have at the interface.
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