Question

Van der Waals' forces increase with increasing no. of Contact points between the molecules.- contact points are the place where the molecules come close together.
How do I find contact points? I kind of don't get it.

Answer 1

Maybe it has something to do with attraction and repulsion? (due to polarity of molecules/atoms just like in this picture?

Answer 2

@ParthKohli plz could you help here?

Answer 3

Yes please :(

Answer 4

Being completely frank, I haven't studied Van der Waals forces properly yet. I just looked it up on Wikipedia. I'd respond if there's any progress.

Answer 5

@ParthKohli owhhhh...

Answer 6

Oh crap :(

Answer 7

uhm...oh well thank you

Answer 8

A contact point doesn't seem to be any formal thing in Van der Waals force. But I think the lines mentioned in the question make sense.

Answer 9

lines mentioned, I'm sorry but I don't follow :o

Answer 10

"contact points are the place where the molecules come close together.'

Makes sense...

Answer 11

@ParthKohli thnx anyways :)

Answer 12

Ooooh yes

Answer 13

@ParthKohli i know but i don't know how to figure where are they

Answer 14

These are just the places where the forces acting on each other are visibly large. In that diagram, the contact points seem to be the really small gaps between all those molecules/ions/whatever.

Answer 15

Thank you @ParthKohli :D

Answer 16

@ParthKohli is it like dipole-dipole stuff?

Answer 17

Yes, that's what I gathered from the passage.

Answer 18

And I'm not 72, no! I'm not that old!

I'm only 70.

Answer 19

O_O what is this about?

Answer 20

@ParthKohli i don't even feel like you are close to 70 O_O

Answer 21

I'm actually 70 divided by 5

Answer 22

ummmmm......

Answer 23

@ParthKohli no thats too less lol

Answer 24

I actually am.

Answer 25

oh hell no, you can't be younger then me O_o"

Answer 26

@ParthKohli

Answer 27

I'mma leave now ^^'
good luck