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 con - Chemistry MCQ NEET 2020 E1 2026 | ExamTest.live

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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):

Solution & Step-by-step Explanation

Freezing point depression (Δ T_{f}) is given by: Δ T_{f} = K_{f} \times m Given K_{f} = 5.12 K kg mol^{- 1} and m = 0.078 m . Δ T_{f} = 5.12 \times 0.078 \approx 0.39936 K Rounding off to two decimal places, we get 0.40 K .

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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):

0.20 K

0.80 K

0.40 K

0.60 K

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