If molality of the dilute solution is doubled, the value of molal depression constant $(K_{f})$ will be :

unchanged

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doubled

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halved

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tripled

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Solution

The correct option is A unchanged
If molality of the dilute solution is doubled, the value of molal depression constant ( $K_{f}$ ) remains unchanged.

The molal depression constant ( $K_{f}$ ) is a characteristic property of the solvent. It has nothing to do with solute concentration.

Hence the option A is correct.

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Similar questions

If molality of the dilute solution is doubled, the value of molal depression constant $(K_{f})$ will be

(K_{f})

(K_{f})

K_{f}

2 A ⇌ A_{2}

K_{c}

K_{c} = \frac{K_{f} [K_{f} \times m - Δ T_{f}]}{[x Δ T_{f} - K_{f} \times m]^{y}}

x

y

(K_{f})

1.99 {K kg mol}^{- 1}

0.075 m

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