Answer the following in one or two sentences. What is van’t Hoff factor? - Chemistry

Exercise | Q 2.05 | Page 45

Answer the following in one or two sentences.

What is van’t Hoff factor?

Solution

van’t Hoff factor (i) is defined as the ratio of colligative property of a solution of electrolyte divided by the colligative property of nonelectrolyte solution of the same concentration.

Thus,

i = ${\displaystyle \frac{\text{colligative property of electrolyte solution}}{\text{colligativepropertyof nonelectrolyte solutionof the same concentration}}}$

${\displaystyle =\frac{△{\text{T}}_{\text{f}}}{{(△{\text{T}}_{\text{f}})}_0}=\frac{△{\text{T}}_{\text{b}}}{{(△{\text{T}}_{\text{b}})}_0}=\frac{△\text{P}}{{(△\text{P})}_0}=\frac{\pi }{{\left(\pi \right)}_0}}$

where quantities without subscript refer to electrolytes and those with subscript to nonelectrolytes.