the movement of water molecule?

Question

when we place a water droplet on some surface..in moves in meanders but not in a straight path...why??.........im need of xact reason..may be in chemical or physical terms

Answer 1

water is H2O as I assume you know that
Hydrogen is slightly electro-positive
and Oxygen is slightly electro-negative
meaning they have charges
as opposite charges attract
hydrogen will attract itself to anything negative
this attraction is called a hydrogen bond

it is found mostly in molecules containing the OH functional group where a molecule looks like this "Rest of molecule -- O (-) H (+)" (this looks similar to alcohol)

anyway... (-) means slightly negative

this OH attracts itself to other OH's or other "O(-)'s"

and O's and OH's are very common
they occur in most surfaces
like paper
skin, namely anything
so when water passes through a surface it will be attracted towards these O's and OH's
will slow down because of them
will speed up to the side because of them
and will move in a strange manner

If the surface is not flat, then maybe the slight imperfections cause the water drop to move strangely

or it can be dust on the surface, that the water "doesent like"

by the way, chromatography has loads to do with water getting stuck on surfaces

(I assume in this answer that nobody knows almost anything to maintain clarity)

(to have ideas of your own, as we know that theories get changed every now and then. we cannot live without thinking ourselves)
as a water droplet, imagine a bunch of magnets in a "water drop shape"
or a bag of baseballs
will the bag run straight down the hill??

hope this helps, and maybe brings you to new breakthrough theories

Answer 2

The surface upon which the water droplet is moving isn't perfectly smooth. Bumps on the surface will deflect it and potholes will temporarily catch it. Also, the surface tension of the water is trying to keep the droplet together; if the droplet sticks to the surface material more than itself, then gravity will cause the droplet to tear itself apart.

Answer 3

Because of the physical nature of water and chemical bonds it posses water acts in a specific manner. Cohesion and adhesion are the attraction of water to itself and to other surfaces.