Calculate the freezing point depression and boiling point elevation of a solution of `10.0 g` of urea `(M_(B)=60)` in `50.0 g` of water at `1 atm`. pressure.`K_(b)` and `K_(f)` for water `0.52^(@)C m^(-1)` and `1.86^(@)C m^(-1)` respectively.

Explanation

`Delta T_(b) = (K_(b) xx w_(b) xx 1000)/(M_(B) xx w_(A))`
` = (0.52 xx 0.6 xx 1000)/(60 xx 100)`
` = 0.052^(@)`
Boiling point of solution = 100 + 0.052 ` = 100.052^(@) C` or `273.15 + 100.052 = 373.202 K`