Q.
What would be the freezing point of aqueous solution containing 17 g of C2H5OH in 1000 g of water. KfH2O=1.86 K m-1.
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a
-0.69°C
b
-0.34°C
c
0.0°C
d
0.34°C
answer is A.
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Detailed Solution
∆Tf=1000×1.86×1746×1000=0.69°C Tf=0-0.69=-0.69°C
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