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Chemistry Question on Depression of freezing point

The freezing point depression constant (KfK_f ) of benzene is 5.12K kg mol−15.12 K\ kg\ mol^{−1}. The freezing point depression for the solution of molality 0.078 m0.078\ 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

Answer

0.40 K

Explanation

Solution

The correct option is (C) : 0.40 K