1.

Consider following figure and answer the questions at the end of it. Figure explains elevation in boiling point when a non-volatile solute is added to a solvent. Variation of vapour pressure with temperature and showing elevation in boiling point. Given that DeltaT_(b) is the elevation in boiling point of the solvent in a solution of molality m then underset(mto0)(Lt)((DeltaT_(b))/(m)) is equal to

Answer»

`K_(b)` (MOLAL elevation constant)
`L_(y)` (LATENT heat of vaporization)
`DeltaS` (entropy change)
x (mole fraction of SOLUTE)

Answer :A


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