posted by albert on .
A HOT CUP OF COFFEE HAS SOME SUGAR COMLETELY DISSOLVED IN IT. AFTER THE COFFEE HAS COOLED, SOME SUGAR APPEARS AT THE BOTTOM OF THE CUP. EXPLSIN WHAT HAS HAPPENED IN TERMS OF SATURATION.
It's tough to read questions posted in CAPS.
The hot coffee dissolved all of the sugar and the solution was not saturated. On cooling, the solubility of the sugar decreases, the solution was saturated, and the excess amount present crystallized.