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The freezing point depression constant o...

The freezing point depression constant of benzene is 5.12 K kg `mol^(-1)`. The freezing point depression for the solution of molality 0.078m containing a non-electrolyte solute in benzene is

A

`0.80` K

B

`0.40` K

C

`0.60` K

D

`0.20` K

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaT_(f)=K_(f) xx ` molality (m)
`DeltaT_(f) = 5.12 xx 0.078`
` rArr 0.3993 = 0.40 ` K
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