1 mole urea and 1 mole NaCl are added to water.Kf = 1.86, Kb = 0.52(in K kg/mole) , determine the ratio of deltaTb v/s deltaTf for the solution (urea : NaCl)

 Since moles of urea and NaCl are equal (1 mole each), the molality will be same.Therefore,

 

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