THE INK PHENOMENOM. Place a droplet of ball pen ink on a water surface.?

Question

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Ink Droplet
Place a droplet of ball pen ink on a water surface. The droplet begins to move. Explain the phenomenon.

Answer 1

This is called the Hydrogen Bond Phenomenon


.....positive and negative s in H2O bond.close together and the surface tension of the water is kind of like a skin .it holds the ink up . This is the correct answer. See:
Hydrogen Bonds Between Molecules
Hydrophobic Exclusion
Hydrogen Bond connectivity

An example of this other than the ink would be to fill a glass full of wate all the way to the top. Then watch the top to the cup as you slowly drop a coin into the liquid ,repeat this..You'll see that the water at the top of the cup seems to be holding itself up and over the brim .Thats the Hydrogen Bond Connectivity Phenom.........

Answer 2

Surface tension and solubility of ink in water.

A molecule inside of of water is attracted uniformly in all side so the net pulling force is zero. However, the molecules on the surface of water is attracted only on the lower side (by other molecules of water) so there is net force towards inside of water surface. That is why the surface of any liquid behaves like a stretched membrane. This is called surface tension.
When you place the ball pen ink drop on water, it floats because of surface tension.
Now the question is - Why does it move. This is because of solubility of ink in water. The ink dissolves non uniformly causing the ink to move.
The same phenominon can be seen when you place small crystal of camphor on water surface. The crystals will dance for quite long time. But when you drop a small quantity of oil in water, the dancing will stop - this is because, the oil prevents dissolving of camphor in water.


Hope you are convinced with this answer. There are many interesting experiments with surface tension.

Answer 3

hi Rudran, same way. Fountain pen. purely like fountain ink in the form of liquid comes out as we bypass on writing. Ball pen - in this we've a ball on the top which might roll as we write. The ink in the form of paste could get out by using fact the ball rolls. consequently the call ball element pen. Tic - tic pen - it somewhat is the handy mechanism to maintain the top lined on an identical time as no longer in use. Now a days we use micro tip pens wherein ink in the liquid style could be fed via a cotton or another cloth tip. If such brush is so thick then it fairly is termed as comedian strip pens. no rely if it is so skinny then it fairly is termed a micro tip. Now polling. I desire INK PEN

Answer 4

Sounds like it has to do with surface tension:

In physics, surface tension is an effect within the surface layer of a liquid that causes that layer to behave as an elastic sheet. This effect allows insects (such as the water strider) to walk on water. It allows small metal objects such as needles, razor blades, or foil fragments to float on the surface of water, and causes capillary action.

Interface tension is the name of the same effect when it takes place between two liquids.

good luck

Answer 5

Surface tension and temperature variations in the upper and lower of the ink globule. Happy