Explain behaviour of solute in the solutionwith the help of Van’t Hoff factor.
Answers
i. When solute neither undergoes dissociation orassociation in the solution, theni = 1 (normal behaviour)
ii. When solute undergoes dissociation in thesolution, theni > 1 (abnormal behaviour)i.e. number of particles increases, value ofcolligative property increases but molar massdecreases than expected value.
iii. When solute undergoes association in thesolution then,i < 1 (abnormal behaviour)i.e. number of particles decreases, the value ofcolligative property decreases but molar mass
of solute increases than expected value
Answer:
Van't Hoff explained that when solutes are dissolved in a solvent they dissociate into ions. ... The dissociation of solute molecules into multiple ions results in an increase in the number of particles. This, in turn, increases the colligative properties of the solution.