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At critical temperature, the surface ten...

At critical temperature, the surface tension of a liquid

A

is infinity

B

is zero

C

cannot be determined

D

is the same as that at any other temperature

Text Solution

Verified by Experts

The correct Answer is:
B
At `T_(C),T = 0` because at `T_(C)` the intermolecular forces for the liquid and gas become equal and the S.T vanishes
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In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c ) If assertion is true but reason is false. (d) If assertion and reason are false. Q. Assertion: At critical temperature, surface tension of a liquid becomes zero. ltbr. Reason: At this temperature intermolecular forces for liquids and gases become equal. Liquid can expand without any restriction.

Assertion : At critical temperature, surface tension of liquids becomes zero. Reason : At critical temperature, intermolecular forces for liquids and gases become equal. Liquids can expand without restriction.

At critical temperature surface tension becomes

A : On increasing temperature the angle of contact generally decreases. R: With rise in temperature, the surface tension of liquid increases.

Statement-1: The angle of contact of a liquid decrease with increase in temeperature Statement-2: With increase in temperature the surface tension of liquid increase.

Assertion : The angle of contact of a lilquid with a solid decreases with increase in temperature. Reason : With increase in temperature, the surface tension of the liquid increases.

What is the effect of temperature on the surface tension of a liquid ?

If temperature increases, the surface tension of a liquid

MARVEL PUBLICATION-SURFACE TENSION -MULTIPLE CHOICE QUESTIONS . (STANDARD LEVEL)
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  16. The surface tension of soap solution is 0.030 N/m . What is the energy...

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