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A solution of urea (mol. mass = 56 g mol...

A solution of urea (mol. mass = 56 g mol`""^(-1)`) boils at `100.78^@ C` at the atmospheric pressure. If `K_f` and `K_b `for water are 1.86 and 0.512 K kg mol-respectively, then the above solution will freeze at:

A

`0.654^@ C`

B

` - 0.654^@ C`

C

`6.54^@ C`

D

`- 6.54^@ C`

Text Solution

Verified by Experts

The correct Answer is:
B
` - 0.654^@ C`
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