In most liquids, with rise in temperature, surface tension of a liquid (a) first decreases and then increases. (b) increases. (c) decreases. (d) remains unchanged.

Answer: (c). Rise in temperature weakens cohesive forces between molecules. So surface tension falls with temperature (zero at the critical temperature). So the answer is (c) decreases.

In most liquids, with rise in temperature, surface tension of a liquid | MHT CET 2024 (16 May, Shift 1)

Q6MHT CET 2024 · 16 MAY · SHIFT 1Easy

Molecular Theory & Factors

In most liquids, with rise in temperature, surface tension of a liquid

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Answer: (c)

Rise in temperature weakens cohesive forces between molecules.
So surface tension falls with temperature (zero at the critical temperature).
So the answer is (c) decreases.

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