Could a hydrophobic surface increase a liquid's resistance to compression/displacement?
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Hey mate ^_^
Having a hydrophobic surface makes it easier for the contact line to move, and thus easier for the droplet to spread...
In this case having a hydrophilic surface would increase the fluid's resistance to spread, however the total contact line force is probably still small as it scales with contact line length....
#Be Brainly❤️
Having a hydrophobic surface makes it easier for the contact line to move, and thus easier for the droplet to spread...
In this case having a hydrophilic surface would increase the fluid's resistance to spread, however the total contact line force is probably still small as it scales with contact line length....
#Be Brainly❤️
Answered by
5
Hello mate here is your answer.
As Manuel Fortin points out, the surface tension force applied to an object floating in a liquid can be either attractive (the fluid wets the object's surface) or repulsive (the fluid repels the object's surface). If this force is uniform all around the floating object's "water line", then no net force is exerted on the floating object, and it floats motionlessly.
However, if the force is not uniform, surface tension can actually propel a little floating object like a wood chip. Try this experiment: in a basin of water, drop a wood chip that has a tiny gobbet of bar soap pressed into one end of it. Observe what happens!
Hope it helps you.
As Manuel Fortin points out, the surface tension force applied to an object floating in a liquid can be either attractive (the fluid wets the object's surface) or repulsive (the fluid repels the object's surface). If this force is uniform all around the floating object's "water line", then no net force is exerted on the floating object, and it floats motionlessly.
However, if the force is not uniform, surface tension can actually propel a little floating object like a wood chip. Try this experiment: in a basin of water, drop a wood chip that has a tiny gobbet of bar soap pressed into one end of it. Observe what happens!
Hope it helps you.
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