1.

The molal boiling point constant for water is0.513^(@)C kgmol^(-1). When 0.1mole of sugar is dissolved in 200ml of water , the solution boils under a pressure of one atmosphere at

Answer»

`100.513^(@)C`
`100.0513^(@)C`
`100.256^(@)C`
`101.025^(@)C`

Solution :`DELTA T_(B)=K_(b)xx m =0.513xx((0.1)/(200)xx1000)`
`=0.2565^(@)C, T_(b)=100.256^(@)C`


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