Problem 8.3: Define supersaturation in one sentence Then

From Chapter 8 Problem Set. Level 1: Conceptual Mastery.

Question

Define supersaturation in one sentence. Then explain why supersaturated water can remain clear for weeks.

Answer

Show answer

Supersaturation means dissolved ions exceed their equilibrium solubility but no stable solid has yet formed. Water can remain clear because nucleation requires an activation barrier to be overcome - ions must collide with compatible orientation and persist long enough to reach a critical cluster size. Until that rare event occurs, thermodynamic permission exists but kinetic action has not started.