GEL PHENOMENA

Question 1

GEL PHENOMENA

Answer 1

Thixotropy
Imbibition
Swelling
Syneresis

Question 2

is a reversible sol-gel/gel-sol formation w/ no charge in volume or temperature, a type of non-newtonian flow.

Answer 2

Thixotropy

Question 3

Gel takes up the liquid but there is no increase in size and volume

Answer 3

Imbibition

Question 4

Gel takes up the liquid but there is increase in volume

Answer 4

Swelling

Question 5

Liquid medium is squeezed out from the gel & the gel shrinks forming a xerogel

Answer 5

Syneresis

Question 6

Instability of preparations resulting to the expulsion of the liquid from the gel

Answer 6

Syneresis

Question 7

When the liquid come out of the gel & only the framework remains

Answer 7

Xerogel

Question 8

Example of Xerogels

Answer 8

Gelatin Sheets
Tragacanth Ribbons
Acacia Tears