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The surface tension of pure water is mea...

The surface tension of pure water is measured at different temperatures . If is found that the surface tension is minimum when the temperature of water is

A

`20^(@)C`

B

`40^(@)C`

C

`70^(@)C`

D

`30^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
C
S.T of pure water decreases with increase in temperature
` :. S.T " of water is minimum at " 70^(@) C `
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MARVEL PUBLICATION-SURFACE TENSION -MULTIPLE CHOICE QUESTIONS . (STANDARD LEVEL)
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  10. When a soap bubble is charged :-

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  11. If the radius of a soap bubble is four times that of another, then the...

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  12. The surface tension of pure water is measured at different temperature...

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  13. When one end of a capillary tube is dipped vertically in water, the pr...

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  14. A long cylinderical glass vessel has a small hole of radius r at its b...

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  15. What is the energy required to blow a soap bubble of radius 5 cm ? [ S...

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  16. The surface tension of soap solution is 0.030 N/m . What is the energy...

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  17. Work done in increasing the size of a soap bubble from a radius of 3cm...

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  18. When NaCl is added to water, the surface tension of watr will

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  19. With an increase in temperature , surface tension of liquid (except mo...

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  20. Work done in forming a liquid drop of radius R is W(1) and that of rad...

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