Surface tension

  • #1

Main Question or Discussion Point

I want to know how to increase the surface area of a liquid without doing any work. Heating would be counted in work done.
 

Answers and Replies

  • #2
berkeman
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I want to know how to increase the surface area of a liquid without doing any work. Heating would be counted in work done.
What is the context of your question? What are you trying to do?
 
  • #3
Andy Resnick
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I want to know how to increase the surface area of a liquid without doing any work. Heating would be counted in work done.
I'm with Berkeman- your question doesn't make sense.

When a liquid spreads (wetting), for example, the fluid-fluid area increases. The wetting fluid does work- the two fluids seek to minimize the energy of the various interfaces.

You could decrease the interfacial energy by adding a surfactant; this would act to increase the fluid-fluid area- but you may consider that as doing work.
 
  • #4
i know it doesnt make any sense. i myself agree that work indeed would be done.
that's why i want to know if there is any possible way.
 
  • #5
lets say am trying to spill the liquid without doing any work. i was suggested that it can be done by making a hole at the bottom of the container and let the liquid spill by itself. but i do not agree with that. so please help me out.
 
  • #6
141
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what about adding washing detergents?
 
  • #7
43
1
i dont think that adding more water would increase the surface tension?
 
  • #8
Use 2-Propanol
 

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