- #1
tomz
- 35
- 0
Hi everyone.
I have a very basic question here. What exactly cause surface tension?
On hyperphysics website, it say surface molecules develop stronger bond with each other. 'Those on the surface have no neighboring atoms above' But what cause this stronger bond? Stronger bond is a result of something...Does liquid surface have higher density??
I can understand why droplet tend to minimize its surface area, but how does this relate to surface tension? this is a pressure inward, not a force tangent to the liquid surface. And this cannot explain why the force is proportional to the length but not the area of the contact.
I just cannot persuade myself..
Thanks
I have a very basic question here. What exactly cause surface tension?
On hyperphysics website, it say surface molecules develop stronger bond with each other. 'Those on the surface have no neighboring atoms above' But what cause this stronger bond? Stronger bond is a result of something...Does liquid surface have higher density??
I can understand why droplet tend to minimize its surface area, but how does this relate to surface tension? this is a pressure inward, not a force tangent to the liquid surface. And this cannot explain why the force is proportional to the length but not the area of the contact.
I just cannot persuade myself..
Thanks