Sponsor Area

Surface Chemistry

Question
CBSEENCH12006543

Explain why hydrophillic sols are relatively more stable than hydrophobic sols?

Solution
Answer:

Hydrophilic sols are more stable than hydrophobic sols because they have stronger interactions between the dispersed phase and water (the dispersion medium). Due to stronger interactions with water hydrophilic sol particles get highly solvated. As a result the sol particles are not able to come near to each other to form aggregates. Hydrophobic sol particles have almost negligible interaction with water. As a result they easily form aggregates.