Asolution must be at a higher temperature than a pure solvent to boil. what colligative property can be employed to achieve this?

Answer : The colligative property employed to achieve this can be, Elevation in boiling point.

Explanation :

Elevation in boiling point : It is defined as the temperature or boiling point of a liquid (a solvent) will be higher when the another compound is added. This means that a solution must be at a higher temperature or boiling point than a pure solvent.

For example : When a non-volatile solute (a salt) is added to a pure solvent such as water.

The formula for elevation in boiling point will be,

or,

where,

= boiling point of solution

= boiling point of pure solvent

= boiling point constant

m = molality

= mass of solute

= mass of solvent

= molar mass of solute

Hence, the colligative property employed to achieve this can be, Elevation in boiling point.

fr8t7iot7o87oglgt87ot79p0[90