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Byju's Answer

Standard XII

Chemistry

Nernst Equation

If quantities...

Question

If quantities $Δ T_{f}, Δ T_{b}, Δ p$ and $π$ without subscript refer to the electrolyte solution and these with subscript refer to non-electrolyte solution then which one is wrong?

i = \frac{Δ T_{f}}{(Δ T_{f})_{0}}

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i = \frac{Δ T_{b}}{(Δ T_{b})_{0}}

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i = \frac{Δ P}{(P^{0})_{0}}

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i = \frac{π}{(π)_{0}}

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Solution

The correct option is C $i = \frac{Δ P}{(P^{0})_{0}}$
By definition which is mentioned in the attached concept, Van't-Hoff factor is the ratio of the observed value of Colligative property to the Calculated value of Colligative property.

In our case, the value with sub-script represents the value of the colligative property for non-electrolyte which is also the calculated value.
Similarly, the value without sub-script represents the value of the colligative property for an electrolyte which is also the observed value.

In option $C$ , the denominator should be $(Δ P)_{0}$ and not $(P^{0})_{0}$ .

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If quantities ΔTf,ΔTb,Δp and π without subscript refer to the electrolyte solution and these with subscript refer to non-electrolyte solution then which one is wrong?

If quantities $Δ T_{f}, Δ T_{b}, Δ p$ and $π$ without subscript refer to the electrolyte solution and these with subscript refer to non-electrolyte solution then which one is wrong?