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The freezing point depression constant (...

The freezing point depression constant `(K_(f))` of benzene is 5.12 K kg `mol^(-1)`. The freezing point depression for the solution of molality 0.078 m containing a non-electrolyte solute in benzene is (rounded off upto two decimal places)

A

0.20 K

B

0.80 K

C

0.40 K

D

0.60 K

Text Solution

Verified by Experts

The correct Answer is:
C
Given : `K_(f)=5.12" k kg "mol^(-1), m=0.078m`
`DeltaT_(f)=K_(f) times m=5.12 times 0.078=0.39936 approx 0.40K`
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