Elevation in boiling point of an aqueous solution of urea is `0.52 ( k_(b) "for water"=0.52K"molality"^(-1))`. The mole fraction is urea in this solution is :

Elevation in boiling point of an aqueous solution of urea is 0.52 ( k_(b) "for water"=0.52K"molality"^(-1)) . The mole fraction of urea in this solution is :

Elevation in boiling point of an aqueous glucose solution is 0.6, K_b for water is 0.52 K molal ""^(-1). The mole fraction of glucose in the solution is:

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. Elevation in boiling point of an aqueous urea solution is 0.52^(@).(K_(b)=0.52^(@)mol^(-1)kg) . Hence, mole fraction of urea in this solution is:

Elevation in b.p of an aqueous urea solution is 0.52^(0). (K_(b)=0.52^(0)"mol"^(-1)kg ). Hence, mole -fraction of urea in this solution is :

Elevation in b.p. of an aqueous urea solution is 0.52^(@), (K_(b)=0.622^(@) "mol"^(-1)kg) Hence, mole-fraction of urea in this solution is :

Figure explains elevation in boiling point when a non-volatile solute is added to a solvent. Variation of vapour pressure with temperaure and elevation in boiling point is marked. Elevation in b.p of an aqueous urea solution is 0.52^(@) (K_(b) = 0.52^(@) mol^(-1)kg) . Hence, mole fraction of urea in this solution is:

Figure explains elevation in boiling point when a non-volatile solute is added to a solvent. Variation of vapour pressure with temperaure and elevation in boiling point is marked. Elevation in b.p of an aqueous urea solution is 0.52^(@) (K_(b) = 0.52^(@) mol^(-1)kg) . Hence, mole fraction of urea in this solution is: