Question

Molal elevation constant of liquids p,q,r,s trends is p>q>r>s thenwhich will show maximum deprwssion in freezing point

Answer 1

Answer:

p

Explanation:

p will show maximum depression

the one that has max value of kb also has max value of kf

Answer 2

Answer:

Maximum depression will be shown by p.

Explanation:

Molal Elevation Constant:

When one mole of solute is dissolved in 1 kilogram of solvent, the elevation in the boiling point during this process is known as Molal Elevation Constant.

Molal Elevation Constant can be written as:

$∆Tb =T0b-Tb$

Here,

∆Tb = Elevation in boiling point / Molal Elevation Constant

T0b = boiling point of Solvent

Tb = boiling point of solution

Molal Depression Constant:

Depression in freezing point is directly related to Molality.

Depression in freezing point can be written as:

$∆Tf =T0f-Tf$

Here,

∆Tf = Depression in freezing point

T0f= boiling point of Solvent

Tf = boiling point of solution

Conclusion:

$∆Tb ∝ m$

Molal Elevation Constant is directly proportional to depression in freezing point therefore, P will show maximum depression.