Capillary Action

Logic Level 2

If above arrangement of capillary tube is situated in a space station, then what will be capillary rise/declination in meter tube. (height of capillary is 4 meter.)


The answer is 4.

Vivek Mohan by Vivek Mohan , 25, India

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1 solution

Vivek Mohan
Mar 18, 2016

In a gravity free environment liquid will either rise or decline in complete height of capillary.

1 Helpful 0 Interesting 0 Brilliant 0 Confused

Even if that is true, why must it rise completely?

Calvin Lin Staff - 5 years, 2 months ago

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because of surface tension leading to either rise or decline in capillary. For detail as you would be familiar with concept of adhesive and cohesive forces, they lead to formation of meniscus on surface of liquid leading it to either drop-down or rise with respect to liquid level in tub. And all above described phenomenon takes place due to pressure difference between two sides of meniscus..

Vivek Mohan - 5 years, 2 months ago

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Great! Could you add all of these details to your solution, to explain why it must rise completely? Thanks!

Calvin Lin Staff - 5 years, 2 months ago

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