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प्रश्न
Define van’t Hoff factor.
उत्तर
The van’t Hoff factor is defined as the ratio of observed colligative property produced by a given concentration of electrolyte solution to the property observed for the same concentration of non-electrolyte solution.
Van't Hoff factor :
To account for the extent of dissociation or association, van’t Hoff introduced a factor i , known as the van’t Hoff factor.
`i = "Observed colligative property of electrolyte solution"/"Observed colligative property of non-electrolyte solution of same concentration"`
It is related to the degree of dissociation as,
`a = "i - 1"/"n’ - 1"`
Value of i :
For association, i < 1
For dissociation, i > 1
No association or dissociation, i = 1
संबंधित प्रश्न
Derive van’t Hoff general solution equation
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\[\begin{bmatrix}\begin{array}{cc}
\phantom{.......}\ce{CH3}\\
\phantom{....}|\\
\ce{CH3CH2CH2 - \overset{⊕}{N} - CH2CH3}\\
\phantom{....}|\\
\phantom{.......}\ce{CH3}
\end{array}\end{bmatrix}\]\[\ce{OH^- ->[Heat] ?}\]
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