Relationship between surface tension and the shape of a liquid drop

  • Thread starter yjk91
  • Start date
  • #1
yjk91
75
0
i don't know how to describe the relationship between surface tension and the shape of a liquid drop. Also what are the attractive forces that increase surface tension?
 

Answers and Replies

  • #2
Andy Resnick
Science Advisor
Education Advisor
Insights Author
7,704
2,578
The free energy is minimized by minimizing the surface area. For positive interfacial energy, that corresponds to a sphere (in the absence of gravity). For negative interfacial energy, that corresponds to mixing- *maximizing* the intrfacial area.

The atomic origins of interfacial energy are murky, to put it mildly. One need not discuss atoms to discuss dividing surfaces.
 
  • #3
GCT
Science Advisor
Homework Helper
1,742
0
Depends on where the drop is - is it on a surface? Cohesion due to intermolecular attractions answers your second question it is your responsibility to find the list of such attractions.
 
  • #4
yjk91
75
0
yes it's on a surface
 
  • #5
GCT
Science Advisor
Homework Helper
1,742
0
Then factor in adhesion-also research the topic of contact angle-the more the liquid molecule is attracted to the surface the less spherical it's going to be.
 

Suggested for: Relationship between surface tension and the shape of a liquid drop

Replies
1
Views
552
  • Last Post
Replies
2
Views
140
Replies
3
Views
57
Replies
6
Views
684
  • Last Post
2
Replies
47
Views
1K
Replies
3
Views
1K
  • Last Post
Replies
3
Views
726
Replies
7
Views
671
Replies
9
Views
846
Top