Why water drops are always spherical?

Spherical water drops thumbnail

Every animal on the planet has experienced that maximum liquid or water drops are always spherical or almost round when they are free like raindrops. But ever think of it why it happens? You poured normal water from the glass of water from a height but when falling down it gets split into the segment and why becomes spherical?
Here we are going to study this phenomenon on this website www.ringstudy.com.

All the liquid on the planet poses a property called surface tension. This surface tension is the only reason for the liquid to be spherical. So let’s discuss what surface tension is-

Surface Tension– It is the tendency of a liquid to shrink into the minimum surface area possible. Surface tension allows insects, usually denser than water, to float and slide on the water surface.

So from the above definition, it is clear that every liquid, say water, tries to occupy the minimum surface area. But how does it happen? It happens due to the molecular force of attraction.

Molecular attraction bet two molecule

According to the molecular force of attraction, every molecule attracts the adjacent molecules as shown in the figure. Consider a water drop of having 9 molecules (e.g.  A,B,C,D,E,F,G,H,I) which is not spherical, say square. Let’s see how it becomes square-
As we know every molecule attracts its adjacent molecule. According to the figure-

Molecular attraction
  1. A will attract B, D & E
  2. B will attract A, C & E
  3. C will attract B, E & F
  4. D will attract A, B, E, H & G
  5. D will attract A, B, C, D, F, G, H & I
  6. F will attract C, B, E, H & I
  7. G will attract D, E & H
  8. H will attract G, D, E, F & I
  9. I will attract H, E & F

Note: Every force of attraction will be equal for the same liquid.

Now see molecules that are not on the surface are neutralized as they are attracting others and getting attracted towards other molecules with the same force. And the molecules on the surface attracts & gets attracted towards the center of the drop (here molecule E). As a result, Molecules get closer and become spherical.

So from the above illustration and figures, it is clear that how the molecular force of attraction plays a vital role in making liquid drops spherical and generating a property called Surface Tension.

I hope you understood the concept of spherical water drops. If you do so then please spread the knowledge over the social platforms with their friends and family.

Thank you!!!

Also read: How hand sanitizer works?

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Jaikamal is a very fluctuating mind person who always looks for knowledge or resources of knowledge. He believes that knowledge is the key to success.

7 thoughts on “Why water drops are always spherical?

  1. Indeed that’s a great logic… We never get to that much depth of this but it’s though a knowledgable as well as interesting fact

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