00:02
So here the concept involved is depression in freezing point and this concept says that suppose we have a pure volatile solvent.
00:09
So it will have a certain freezing point.
00:13
Now suppose we have a non -volatile solute and this non -volatile solute is added to this pure solvent.
00:20
So when we add solute to solvent we get a solution and for this solution also we will have a certain freezing point.
00:26
Now, the basic point is that there will be decrease in the freezing point of solution as comparison to the freezing point of pure solvent and this decrease in freezing point of solution.
00:39
That is called the depression freezing point.
00:43
Now, when i add a electrolyte, when the non -volatile solute is a electrolyte, ionic electrolyte, then in that case, dissociation will take place.
00:56
Okay, like suppose i have here c .a.
00:59
Cl calcium chloride.
01:00
So what will happen that this will dissociate it to form ca2 positive plus 2cl negative.
01:08
Okay...