The freezing point depression constant K f of benzene is 5.12 K kg mol – 1 . The freezing point depression…

The freezing point depression constant Kf 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):
  1. 0.80 K
  2. 0.40 K
  3. 0.60 K
  4. 0.20 K

Solution

ΔTf=Kf×m

=5.12×0.078

ΔTf=0.40K

Asked in: NEET 2020 (Phase 1)

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