Question
In: Physics
a) Explain Cassie-Baxter state and Wenzel state. b) If the contact angle of a flat surface...
a) Explain Cassie-Baxter state and Wenzel state.
b) If the contact angle of a flat surface is 100°, but on the
same type of rough surface, the apparent contact angle is 120°,
calculate the surface roughness r (assuming the water droplet is at
Wenzel state) and the surface fraction f or Φs (assuming the water
droplet is at Cassie-Baxter state). What is the meaning of the
calculated r and f values?
c) Which state is more reasonable in real-life situations?
Why?
Solutions
genius_generous answered 2 years agoRelated Solutions
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