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Question
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 = `"colligative property of electrolyte solution"/"colligativepropertyof nonelectrolyte solutionof the same concentration"`
`= (triangle "T"_"f")/(triangle "T"_"f")_0 = (triangle "T"_"b")/(triangle "T"_"b")_0 = (triangle "P")/(triangle "P")_0 = pi/(pi)_0`
where quantities without subscript refer to electrolytes and those with subscript to nonelectrolytes.
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