The unit of ebulioscopic constant is _______________.


In thermodynamics, Ebullioscopic constant relates molality to the boiling point elevation.


This relation is



Where is the elevation in the boiling point, i is the van’t Hoff factor, b is the molality and Kb is the Ebullioscopic constant.


Thus, the unit of an ebullioscopic constant is K (molality)-1 or K Kg mol-1, as molality= .


Thus, Option (i) is the correct answer.

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