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Author Topic: What is the effects of the total van de wahls forces of the Earth?  (Read 1091 times)

Offline Titanscape

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I vaguely recall pardon my spelling, van de wahls forces, and ask what the whole Earth's van de wahls forces do?


Offline evan_au

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Van der Waals force has a fairly short range - the width of an atom or less.

So it is effective at holding together the atoms of a solid or liquid which are in contact with each other, but has little effect on gases which are well above their boiling point.

So Van der Waals force is important at short range in holding together the atoms in a pebble, or the water in a raindrop. But at larger scales, gravity dominates, and determines the shape of the oceans and mountains.

At the distance of the moon, only gravity matters.

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