Surface tension

Surface tension:

A molecule in the liquid mass (a) is pulled consistently on all the sides through intermolecular forces. However a surface molecule (b) suffers a much greater intermolecular attraction in the direction of the interior of the liquid as compared towards the vapour phase, since fewer molecules are exist in the vapour phase. The surplus amount of inward force on the surface layer accounts for the surface tension. Surface tension (ϒ) is described like the force acting perpendicularly inwards on the surface layer of a liquid to pull the surface molecules of it in the direction of the interior of the liquid mass.

Factors affecting surface tension

1. Density:

Macloed’s equation connects surface tension to the density of the liquid (ρ) and that of the vapour (ρ’) of it.

ϒ ∞ (ρ- ρ’)2

28_density.jpg


  

                                         Diagram: Unequal force of attraction experienced by a surface molecule

2. Temperature:

Temperature and surface tension are oppositely associated to each other. When the temperature of the liquid gets increased, the surface tension gets decreased and becomes 0 at the critical temperature.

3. Solutes:

Solutes which enter the liquid increase the surface tension of the solvent, when solutes which concentrate on the surface lower the surface tension.

 

Latest technology based Biology Online Tutoring Assistance

Tutors, at the www.tutorsglobe.com, take pledge to provide full satisfaction and assurance in Surface tension homework help via online tutoring. Students are getting 100% satisfaction by online tutors across the globe. Here you can get homework help for Surface tension, project ideas and tutorials. We provide email based Surface tension homework help. You can join us to ask queries 24x7 with live, experienced and qualified online tutors specialized in Surface tension. Through Online Tutoring, you would be able to complete your homework or assignments at your home. Tutors at the TutorsGlobe are committed to provide the best quality online tutoring assistance for Biology homework help and assignment help services. They use their experience, as they have solved thousands of the Biology assignments, which may help you to solve your complex issues of Surface tension. TutorsGlobe assure for the best quality compliance to your homework. Compromise with quality is not in our dictionary. If we feel that we are not able to provide the homework help as per the deadline or given instruction by the student, we refund the money of the student without any delay.

©TutorsGlobe All rights reserved 2022-2023.