Adhesive force and surface tension

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SUMMARY

The discussion centers on the relationship between adhesive force and surface tension in a capillary tube containing liquid. It is established that the adhesive force exerted by the tube on the liquid and the surface tension force exerted by the liquid on the tube are equal, in accordance with Newton's third law. The conversation highlights the complexity of wetting phenomena, emphasizing the competition between liquid-solid and air-solid interfacial energies, which influences the motion of the three-phase contact line.

PREREQUISITES
  • Understanding of Newton's third law of motion
  • Familiarity with adhesive and cohesive forces
  • Knowledge of surface tension principles
  • Basic concepts of wetting and contact angles
NEXT STEPS
  • Research the principles of capillarity and its applications in fluid mechanics
  • Explore the concept of interfacial energies in liquid-solid interactions
  • Learn about the effects of surface tension on liquid behavior in various materials
  • Investigate the role of contact angles in wetting phenomena
USEFUL FOR

Students and professionals in physics, materials science, and engineering, particularly those interested in fluid dynamics and surface interactions.

jd12345
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there is a liquid in a capillary tube. The tube pulls the liquid because of adhesive force and liquid pulls the tube because of surface tension. Will both the forces be equal? according to Newtons third law-yes

I don't understand this. IF this is the case then whatever the substance tube is made up of it will pull the liquid with the same force - which is the force by the surface tension
 
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I don't understand what you mean by 'adhesive force'. Wetting (that is, motion of the three-phase contact line) involves competition between the (in your case) liquid-solid and air-solid interfacial energies.
 

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