Unit 2) 7) Applications Of Equilibria

Question 1

Immiscible liquids do not _____ with each other

The liquid with the lesser density floats on the liquid with the _______ density

Answer 1

Mix

Greater

Question 2

What is the partition coefficient

Answer 2

When a solid is shaken in two immiscible liquids it partitions itself between the two liquids in a definite ratio called the partition coefficient

Question 3

Example of partition coefficient

Answer 3

• two immiscible liquids are cyclohexane and an aqueous solution of potassium iodide. Solid iodine dissolves in both these liquids , when shaken some of iodine dissolves in one of the liquids and the rest remains in the other liquid. (The iodine partitions itself between the two liquids)
• some of the solute dissolved in the lower level starts to move it into the upper layer while at the same time solute in the upper layer starts to move to the lower layer
• eventually the rate of movement from the lower layer to the upper layer becomes the same as the rate of the movement from the upper layer to the lower layer and a dynamic equilibrium is set up.

Question 4

Here, the equilibrium constant is known as the partition coefficient and is _________ dependent

Answer 4

Temperature

Question 5

The value of the partition coefficient depends on…

Answer 5

• the immiscible liquids involved
• the solute
• the temperature

It is affected by what solvents / solute are used ,but not by adding mode solvent or solute

Question 6

Partition can be used in…

Answer 6

Solvent extraction
Party idiom cam be used to extract and purify a desired product from a reaction mixture using a separating funnel. This method relies on the product being mode soluble in one liquid phase than the other.