Adsorption, coagulation, flocculation, and entropy

[mikeclinton]

Homework Statement

Adsorption, coagulation, and flocculation are all important processes to remove or separate target substances from mixtures. In these processes, we can observe the spontaneous decrease of entropy.; can we therefore conclude that the second law of thermodynamics doesn't always apply. Comment on this contradiction.

Homework Equations

Hint: dH - TdST <= 0

 

[theodoros.mihos]

Think about the whole system entropy.