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Definition of Solution

If the elevat...

Question

If the elevation in the boiling point of a solution of 10gm of solute (mol. wt.=100) in 100 gm of water is $Δ T_{b}$ . Then the ebullioscopic constant of water is :

10

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10 Δ T_{b}

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Δ T_{b}

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\frac{Δ T_{b}}{10}

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Solution

The correct option is B $Δ T_{b}$
$Δ T_{b} = K_{b} m_{s o l u t e}$

$m_{s o l u t e} = \frac{10}{100} \times \frac{1000}{100}$

$= 1 m$

$Δ T_{b} = K_{b}$

Hence, option $C$ is correct.

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