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Topic: water  (Read 9164 times)

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Offline xiankai

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water
« on: August 17, 2005, 08:12:03 AM »
why does water always stick to containers? its near impossible to shake it off. no amtter how hard u pour, there is always water left in the container
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Offline ATMyller

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Re:water
« Reply #1 on: August 18, 2005, 04:16:20 AM »
With small amounts of water (droplets etc.) the force of surface tension is greater than gravitational pull or forces you manage to induce with shaking.
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Offline xiankai

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Re:water
« Reply #2 on: August 18, 2005, 04:34:19 AM »
what is surface tension? in which direction does it act?
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Offline Mitch

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Re:water
« Reply #3 on: August 18, 2005, 05:30:24 AM »
Also look into the chemical property of adhesion.
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Offline xiankai

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Re:water
« Reply #4 on: August 19, 2005, 01:50:30 AM »
what kind of adhesion is it? i dont think water adheres to the container chemically, yet there also doesnt seem to be a physical force  ???
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Offline Donaldson Tan

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Re:water
« Reply #5 on: September 01, 2005, 12:21:20 AM »
it's a type of intermolecular bonding, between water molecules and the container surface
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Blueshawk

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Re:water
« Reply #6 on: September 01, 2005, 12:30:07 AM »
the capillary effect is based on water-surface interaction.

its is in part due to the polar nature of water

EDIT: spellcheck
« Last Edit: September 01, 2005, 12:30:53 AM by Blueshawk »
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Offline Mitch

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Re:water
« Reply #7 on: September 01, 2005, 01:12:58 AM »
There is no capillary action involved on large surfaces like a cup or container. It will be do to the macroscopic concept of adhesion described on the molecular level by Geodome.
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Offline xiankai

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Re:water
« Reply #8 on: September 01, 2005, 03:50:02 AM »
is that kind of intermolecular bonding covalent? (making a guess... i dont really know much about these stuff)
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