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Why does water spread over and wet a gla...

Why does water spread over and wet a glass ?

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MBD PUBLICATION-MECHANICAL PROPERTIES OF FLUID (LIQUID AT REST)-QUESTION BANK
  1. What will be the rise of water when a capillary tube of radius 0.5mm i...

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  2. Distinguish between cohesion and adhesive forces.

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  3. Why does water spread over and wet a glass ?

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  4. Distinguish between surface tension and surface energy.

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  5. Calculate the excess pressure between inside and outside of soap bubbl...

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  6. Free surface of a liquid behaves like a stretched membrane. Explain br...

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  7. Explain what happens to the energy used to blow a soap bubble ?

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  8. Why a needle may float on clear water but sink when some detergent is ...

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  9. Explain why water wets glass.

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  10. The radius of soap bubble is increased to double its initial size. Cal...

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  11. Show graphically the nature of intermolecular forces when the distance...

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  12. If the radius of capillary tube is doubled, what changes will take pla...

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  13. Explain why the shape of a small mercury drop is spherical.

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  14. State the Archimedes principle.

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  15. A big mercury drop is broken into n identical smaller droplets. Assumi...

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  16. A mercury drop does not wet glass whereas a water drop sticks to glass...

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  17. Explain surface energy. How it is connected with surface tension?

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  18. Find the work done in doubling the diameter of soap bubble.

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  19. Water rises to a height h in a glass capillary tube when dipped vertic...

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  20. Why does soap help cleaning clothes?

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