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Depression in Freezing Point

Given that Tf...

Question

Given that $△ T_{f}$ if is the diperssion in freezing point of the solvent of non-volatile solute of molality m, the quantity $l i m m \to 0 (\frac{△ T_{f}}{m}) i s e q u a l t o$

Zero

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One

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\infty

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Finite value

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Solution

The correct option is D Finite value
$△ T_{f} = K_{f} m$
$l i m m \to 0 (\frac{△ T_{f}}{m}) = l i m m \to 0 (K_{f}) = K_{f}$

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