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At critical temperature, the surface ten...

At critical temperature, the surface tension of a liquid

A

Zero

B

infinite

C

Between 0 and `oo`

D

Can not be determined

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The correct Answer is:
A
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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

ERRORLESS -SURFACE TENSION-Exercise
  1. At critical temperature, the surface tension of a liquid

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  2. The rain are in spherical shape due to

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  3. Surface tension is due to

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  4. When there is no external force, the shape of a liquid drop is determi...

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  5. Soap helps in cleaning clothes, because

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  6. When a greased iron needle is placed gently on the surface of water at...

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  7. Coating used on raincoat are waterproof because

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  8. If temperature increases, the surface tension of a liquid

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  9. A drop of oil is placed on the surface of water. Which of the followin...

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  10. The temperature at which the surface tension of water is zero (1) 37...

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  11. A small air bubble is at the inner surface of the bottom of a beaker f...

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  12. The spider and insect move and run about on the surface of water witho...

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  13. Small droplets of a liquid are usually more spherical in shape than la...

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  14. When a shaving brush is taken out of water its hair cling together, wh...

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  15. A square wire frame of side L is dipped in a liquid. On taking out , a...

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  16. Water does not wet an oily glass because

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  17. A water drop takes the shape of a sphere in a oil while the oil drop s...

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  18. Which of the fact is not due to surface tension

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  19. In the glass capillary tube, the shape of the surface of the liquid de...

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  20. Force necessary to pull a circular plate of 5cm radius from water surf...

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