Please give the differences between Lyophobic and Lyophilic sols?
Please give the differences between Lyophobic and Lyophilic sols?
Isha Singh , 16 Years ago
Grade 10
Physical Chemistry> Lyophobic sols and Lyophillic sols...
2 Answers
askIITIians Expert
|
Lyophobic Sols |
Lyophilic Sols |
|
1) Colloidal particles are electrically charged |
Particles may or may not be charged |
|
2) Stability is due to electrical charge |
Stability is due to adsorption dispersion medium. |
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3) Viscosity is similar to that of the dispersion medium. |
Viscosity is much higher than that of the dispersion medium. |
|
4) Surface tension is similar to that of dispersion medium. |
Surface tension is often lower than that of the dispersion medium. |
|
5) Exhibit Tyndall effect |
These do not exhibit Tyndall effect. |
|
6) The particles are easily detected by microscope. |
The particles cannot be readily detected by the microscope. |
|
7) Small quantities of electrolyte cause precipitation. |
Small quantities of electrolyte have little effect. But high concentration causes coagulation. |
Sushma Reddy
simple def: solvent loving-lyophilic,solvent hating -lyophobic,this is regarding disperse phase
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