Question

What is surface tension of liquids? Explain the effect of temperature on the surface tension of liquids.

Answer 1

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➡️ Generally , surface tension decreases when 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 liquid molecules have at the interface.

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Answer 2

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Here is your answer

Surface tension is defined as the force acting per unit length perpendicular to the line drawn on the surface of the liquid

Unit : NM^-1 or KgS-2