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The molal boiling point constant for wat...

The molal boiling point constant for water is`0.513^(@)C kgmol^(-1)`. When `0.1`mole of sugar is dissolved in `200`ml of water , the solution boils under a pressure of one atmosphere at

A

`100.513^(@)C`

B

`100.0513^(@)C`

C

`100.256^(@)C`

D

`101.025^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
C
`DeltaT_(b)=K_(b).m = 0.513 xx (0.1)/(200//1000) =0.256^(@)C`
rArr T_(b) = 100 + 0.256 =100.256^(@)C`
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